Delicious and Nutritious Vegetarian Seitan Recipe

Greetings, fair lords and ladies! As a faithful servant of the culinary arts, I have been given the exquisite task of sharing with you a recipe fit for a king. Today, I present to thee a dish originating from the captivating city of New Orleans: The Slow Cooker Vegetarian Seitan Po’Boy!

If you have been seeking a hearty plant-based meal that will transport you directly to the vibrant streets of the Big Easy, look no further. This sandwich is packed with flavourful ingredients that will surely tantalize your taste buds.

As Shakespeare once wrote, “if music be the food of love, play on.” And so, may this recipe provide you with both nourishment and merriment. For who can resist the rich aroma of slow-cooked seitan infused with mouth-watering seasonings?

Without delay, let us proceed with this culinary adventure and see what wonders the magic of the slow cooker can bring forth in this Vegan Slow Cooker New Orleans Po’Boy!

Why You’ll Love This Recipe

Slow Cooker New Orleans Po'Boy (Vegetarian Seitan)
Slow Cooker New Orleans Po’Boy (Vegetarian Seitan)

Hark! Hear ye, hear ye! A wondrous recipe is upon us that thou canst not help but fall in love with! This Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe is not only easy to make, but it is also packed with flavor and nutrition.

Art thou a lover of sandwiches? Then thee shall be thrilled with this recipe that boasts layers of deliciousness! The vegan seitan roast will melt in thy mouth, along with the crispy lettuce and juicy tomatoes. The tangy red onions will add a burst of flavor, making thy taste buds dance with joy.

But that’s not all, friends! This vegan slow cooker recipe is perfect for busy souls – simply set and go! With only a few minutes of prep, thou canst go about thy day without worry. When thou dost return home to the sweet aroma of thy slow-cooked roast, thou shalt truly know what it means to be in heaven.

And what’s more, this recipe is versatile as the New Orleans po’boy itself! Thou canst customize the ingredients to suit thy desires, whether it be adding vegan cheese or substituting soy sauce for tamari soy sauce. The possibilities are endless!

Therefore, I implore thee to give this Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe a try. Allow it to awaken thy senses and transport thee to the streets of New Orleans with every bite. For it is not just any sandwich – nay – it is a masterpiece that shall leave thee craving for more!

Ingredient List

 A hearty New Orleans favorite with a vegetarian twist - introducing the Slow Cooker Seitan Po'Boy!
A hearty New Orleans favorite with a vegetarian twist – introducing the Slow Cooker Seitan Po’Boy!


  • 1 pound seitan

Vegetable Broth:

  • 2 cups water
  • 1 vegetable bouillon cube

Seasoning Mixture:

  • 4 garlic cloves, minced
  • 2 tablespoons soy sauce
  • 2 tablespoons tamari soy sauce
  • 1 teaspoon onion powder
  • 1 teaspoon dried mushroom seasoning

Po’Boy Ingredients:

  • 1 medium red onion, sliced thinly
  • 3 ripe tomatoes, sliced thinly
  • lettuce leaves
  • mayonnaise (vegan)

Optional Ingredients for Variation:

  • Kung Pao sauce for a spicy kick
  • Vegan baked mac and cheese for a heartier sandwich
  • Red beans and rice on the side for a classic New Orleans-style meal

The ingredient list for this vegan slow cooker New Orleans po’boy recipe is straightforward. The base of this po’boy is seitan – a high-protein meat substitute made from gluten. If you’ve never tried seitan before, now is the time to step out of your comfort zone and give it a go! The seitan is slow-cooked with a flavorful vegetable broth that infuses it with incredible taste. The seasoning mixture includes minced garlic cloves, soy sauce, tamari soy sauce, onion powder and dried mushroom seasoning. These ingredients create a delicious umami flavor that perfectly complements the seitan’s natural nuttiness.

Once you’ve got the seitan cooked to perfection, it’s time to assemble your po’boy. In addition to the sliced red onion and tomatoes, it’s important to use very fresh lettuce leaves to add crunch and texture to your sandwich. Finally, don’t forget the vegan mayonnaise! A little bit of veggie mayo goes a long way when it comes to bringing all the flavors together in this dish. If you’re feeling adventurous, try adding kung pao sauce or vegan baked mac and cheese for extra flavor punch. And if you’re really going for that authentic New Orleans experience, serve this sandwich with a side of red beans and rice like chef Kevin Belton suggests in his slow-cooked roast beef po’boy recipe.

The Recipe How-To

 Some may call it a sandwich, but in the Big Easy, it's a Po'Boy.
Some may call it a sandwich, but in the Big Easy, it’s a Po’Boy.

Now that you have all your ingredients on hand, it’s time to get cooking! This vegetarian seitan version of the New Orleans po’boy is slow-cooked to perfection using a simple yet flavorful broth. Don’t worry if you’re new to slow cooking, this recipe is easy and foolproof. Just follow these steps and you’ll end up with a delicious sandwich that will make your taste buds dance.

Step 1: Making the Broth

– 4 cups water
– 2 minced garlic cloves
– 1 tsp bouillon
– 1 tsp soy sauce
– 1 tsp tamari soy sauce

In a small mixing bowl, whisk together the water, garlic, bouillon, soy sauce, and tamari soy sauce until everything is well combined.

Step 2: Preparing the Seitan Roast

– 1 lb of seitan
– 1 diced onion
– 3 dried mushrooms

Start by cutting the seitan into thin slices or shreds. You can also use store-bought seitan roast if desired. Place the sliced or shredded seitan in the slow cooker.

Add the diced onions and dried mushrooms on top of the seitan.

Step 3: Pouring and Cooking with the Broth

Pour the broth mixture over the seitan roast in the slow cooker. Set it to cook on high for four hours or on low for eight hours.

After the cooking time is up, remove the seitan roast from the slow cooker, reserving any leftover broth for dipping or drizzling over your sandwich.

Step 4: Assembling Your Po’boy Sandwich

– Seitan roast
– Fresh tomatoes
– Fresh red onion
– Lettuce leaves
– Vegan mayonnaise
– French bread

Cut your French bread in half lengthwise and spread vegan mayonnaise on both halves. Add slices of fresh tomato and red onion on one half of the bread, then top it with lettuce leaves.

Slice or shred some of your cooked seitan roast onto the other side of the bread. Finish it off with some reserved broth from step three if desired.

Now it’s time to enjoy your delicious vegetarian New Orleans po’boy sandwich!

Substitutions and Variations

 This sandwich is packed with flavor and texture, making it a guaranteed crowd-pleaser.
This sandwich is packed with flavor and texture, making it a guaranteed crowd-pleaser.

Ah, for thou who dost desire to make a variant of my New Orleans Po’Boy, there lies an abundance of possibilities. Fear not, for I shall guide you through the options to choose from to create your very own unique taste!

For starters, if thou doth not wish to use Seitan, thou canst substitute it with a vegan alternative, such as tempeh or tofu. Alas, the spices and sauces in the recipe may need a slight alteration to complement the new taste.

Moreover, for a gluten-free variant or variation that requires lesser cooking time, you can opt to use mushrooms or eggplant instead- both of which hold up well and retain their flavor during cooking.

If thou wouldest like to add some heat and zing to your Po-Boy, then thou shalt add a touch of Kung Pao sauce or even Cajun seasoning!

For vegans who wouldst like some added protein and texture to the sandwich, I suggest using vegan ham or sausage links. Cutting them into bite-sized pieces and layering them on top will add more complexity and depth to this sandwich.

Finally, there are numerous bread choices available for thee to select from. Thou doth not have to stick with traditional po boy bread; hearty wheat bread or ciabatta rolls would provide texture and tenderness that complements your dish perfectly.

Remember; be bold and experiment! With these substitutes and variations at hand, this New Orleans Po’ Boy can be transformed into numerous exotic sandwiches.

Serving and Pairing

 The key to an authentic Po'Boy is the bread - soft on the inside, crusty on the outside.
The key to an authentic Po’Boy is the bread – soft on the inside, crusty on the outside.

Verily, what is a po’boy sandwich without its accompaniments? Forsooth, there are many flavors that complement the rich and hearty taste of this slow-cooked vegan seitan roast beef po’boy! You can partner it up with a side of hot and spicy gumbo, which is perfect for dipping. Or perhaps you might want to try my renowned recipe for vegan baked mac & cheese – this dish can only enhance the deliciousness that one’s taste buds will savor.

Moreover, some prefer to serve their po’boy with a classic side of crispy fries, but mayhaps you could choose to switch them for roasted sweet potato wedges. This dish is quite easy to prepare as well! All you need is a peeled sweet potato that has been cut into wedges, and then tossed with olive oil and some herbs (thyme or dried rosemary will do). Skilfully spread them on a baking sheet and roast them in the oven until they develop a crispy shell with a creamy inside.

In addition to this, I have discovered that members of my family praise their po’boys further by adding some sliced tomatoes, lettuce or red onion. These fresh vegetables add crunch and texture which greatly enhance the flavors of this wholly savory wonder. And finally, for those who desire a more rich condiment to round out their po’boy flavors , mayhaps they may like to drizzle some hot sauce over it or add a dollop of creamy vegan mayonnaise.

Ultimately, there are many options when it comes to serving and pairing your New Orleans-style po’boy sandwich. Therefore, be creative and experiment with different choices until ye find thee desired accompaniment!

Make-Ahead, Storing and Reheating

 A true New Orleans Po'Boy is never complete without a spicy remoulade sauce.
A true New Orleans Po’Boy is never complete without a spicy remoulade sauce.

Hark, my dear companions of the culinary craft! Methinks that it’s quintessential to let thee know about the wonders of make-ahead, storing and reheating this Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe.

Firstly, when, by chance, thou hast an occasion coming up and need to serve a meal in haste, thou canst prepare this dish ahead of time with ease. Simply keep the cooked seitan in an airtight container in the refrigerator for up to three days. And then, when the moment arrives to share thy dish, just quickly reheat it in a pan over medium heat until heated through.

Secondly, if thou art contemplating making this delightful po’boy sandwich for future cravings or servings, I prithee recommend making more than what’s required because leftovers make for splendid next-day meals. Simply store leftover cooked seitan with vegetables and sauce separately in airtight containers in the refrigerator for up to three days. And then when hunger strikes again, reheat the seitan and veggies in a pan over medium heat and assemble thy beloved po’boy sandwich.

And lastly, if by any chance thou hath leftover seitan that has surpassed the aforementioned 3-days time limit, no need to fret! Thou canst freeze it for future consumption. Simply store it with its sauce and vegetables separately in freezer-safe containers or bags and freeze for up to three months. To reheat from frozen state, thaw the seitan overnight in the refrigerator or use a microwave oven. Reheat thy thawed seitan in a pan over medium heat until hot and as fresh-tasting as ever.

With these tips regarding make-ahead, storing, and reheating thy Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe leftovers or extras, verily I say unto you all that thou shalt never go hungry nor waste any scrumptious food again. Carry on with thy culinary journey with ease!

Tips for Perfect Results

 We've substituted traditional roast beef with seitan to create a vegetarian version that's just as satisfying.
We’ve substituted traditional roast beef with seitan to create a vegetarian version that’s just as satisfying.

Friends, to guarantee that your Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe comes out perfectly every time, I present to you a few helpful tips and tricks.

Firstly, let’s talk about the seitan. To achieve a more tender and flavor-infused seitan, marinate it overnight in soy sauce or tamari soy sauce. This will also make the seitan less dry as it soaks up the flavors of the marinade.

Furthermore, if you want your seitan to turn out less mushy and more textured, try cooking and then draining it before adding to the slow cooker. Doing so will remove excess moisture and give it that desirable texture.

One important tip when it comes to using bouillon is to dilute it in water before pouring it into the slow cooker. This makes sure there are no clumps of bouillon in your dish and ensures an even distribution of the bouillon flavor throughout.

Next up is garlic – when cooking with this aromatic ingredient, make sure not to overdo it. Too much garlic can easily overpower other flavors in the dish. Therefore, be mindful and consider reducing the amount called for by half or use garlic powder instead of whole cloves.

Another point on onions – we all know how they can make us cry while chopping them. To reduce tears, refrigerate onions for 30 minutes or chop them under running cold water. It’s a small but game-changing trick!

Lastly, for a final touch of authenticity to this classic New Orleans recipe, I recommend using traditional French bread instead of just any sandwich bread. Trust me when I say this – It’s worth making that extra effort to get your hands on a good quality baguette.

By keeping these tips in mind, you are well on your way to creating the perfect Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe that everyone will love!

Bottom Line

In conclusion, the Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe is a delicious and innovative alternative to the traditional roast beef po’boy. By using seitan and slow cooking it in a mix of flavorful ingredients, this vegan twist is perfect for those who crave the taste of New Orleans cuisine without consuming meat.

This recipe is perfect for anyone looking to spice up their meals with dynamic and adventurous flavors. Whether for lunch or dinner, this po’boy will surely stand out among other sandwiches and keep you feeling both satisfied and healthy.

What’s more, with the variety of substitutions and variations available to you, you can customize the flavors to your liking while still maintaining a vegan diet. I guarantee that this recipe will become a staple in your kitchen, whether you’re a seasoned vegan or just starting out. So, don’t hesitate and give it a try today!

I hope my detailed instructions, tips, and recommendations have helped guide you through making this delicious sandwich. Remember that everyone is capable of being an amazing cook – all it takes is practice, creativity, and an open mind. Happy Cooking!

Slow Cooker New Orleans Po'Boy (Vegetarian Seitan)

Slow Cooker New Orleans Po’Boy (Vegetarian Seitan) Recipe

This recipe is practically a sacrilege from where I come, but I have some leaf-lovers in my world and I try to accommodate.  A two-fold slow cooker recipe from
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Prep Time 20 mins
Cook Time 16 hrs
Calories 350.2 kcal


Slow Cooked Vegetarian Beefy-Flavored Bouillon

  • 1/2 cup dried mushroom (assorted varieties)
  • 1 large onion (cut into quarters)
  • 4 garlic cloves (peeled and smashed)
  • 1 cup water
  • 1/4 teaspoon soy sauce or 1/4 teaspoon tamari soy sauce

Slow-Cooked Seitan

  • 1 lb seitan (two 8-ounce packages of Upton's Naturals traditional seitan or homemade)
  • 2 minced garlic cloves
  • 2 cups water (plus more as needed)
  • 1/4 cup beefy bouillon (recipe above or 2 tablespoons vegan beef-flavored bouillon such as Better Than Bouillon No Beef Base)
  • 1 teaspoon cajun seasoning
  • salt and pepper

The Rest to Taste

  • 1 lb French bread, loaf
  • mayonnaise (to taste)
  • shredded lettuce (optional)
  • red onion, shaved (optional)
  • tomatoes, slices (optional)


  • Vegetarian Beefy-Flavored Bouillon to be made in advance:  Process the mushrooms into a powder using a food processor or spice grinder.
  • (Note:  The water for the beefy-flavored bouillon will keep the veggies from sticking to the slow-cooker, but you can spray the empty crock with oil before adding your ingredients for extra security.) To the slow cooker, add the mushroom powder, cut onion, garlic, water and soy sauce. Cook on low for 8 hours. Cool slightly.
  • Add the contents of the slow-cooker to a blender or food processor and blend until smooth.  Portion 1/4 cup for this recipe.  This can be made in advance and frozen.
  • Slow Cooker Seitan:  Cut half of the seitan into bite-sized cubes (or break pieces apart if the seitan is already cubed).   Pulse the remaining half in a food processor until you have small, ragged bits.
  • In a slow-cooker combine the chopped seitan, garlic, water, 1/4 cup beefy-bouillon, Cajun seasoning, salt and pepper to taste. Cook on low for 6 to 8 hours.
  • About 20 minutes before serving, add extra water if the mixture has become dry. Add 1 tablespoon cornstarch to the slow-cooker and mix well. Cook for 20 more minutes. This should thicken the gravy. If it is not thick enough, add the remaining 1/2 tablespoon cornstarch. Serve on French bread with mayonnaise, lettuce, tomato and onion.

Add Your Own Notes


Serving: 441gCalories: 350.2kcalCarbohydrates: 69.1gProtein: 14.1gFat: 2.2gSaturated Fat: 0.6gSodium: 648.5mgFiber: 3.5gSugar: 4.6g
Keyword Lunch
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