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    Home » Recipes » Vegan Christmas Recipes

    Roasted Seitan, Peppers, and Portobellos

    Published: Apr 20, 2013 · Updated: Sep 8, 2021 · This post may contain affiliate links.

    Jump to Recipe - Print Recipe

    This hearty Roasted Seitan, Peppers, and Portobellos dish is super easy to throw together, yet festive enough for special occasions. It makes for a great centerpiece for vegan Easter dinner or a Christmas menu!

    Roasted Seitan with Peppers and Mushrooms recipe
    Jump to:
    • How to Make Roasted Seitan, Peppers, and Portobellos
    • Roasted Seitan, Peppers, and Portobellos FAQs
    • More Recipes
    • Recipe
    • Comments

    When you’re preparing a multi-course meal, it’s so nice when the entree can be made at the last minute with little hands-on time. This roasted seitan dish is exactly that! Prep the ingredients in 15 minutes and then set it to cook for half an hour—it's that simple.

    How to Make Roasted Seitan, Peppers, and Portobellos

    1. Preheat the oven.
    2. Mix together seitan, bell peppers, zucchinis, olive oil, and teriyaki marinade. Transfer to a roasting pan.
    3. Roast 15 minutes, stirring occasionally. Add scallions, then roast 5–10 minutes.
    4. Transfer mixture to a serving container. Season and keep covered until serving.

    Roasted Seitan, Peppers, and Portobellos FAQs

    Is seitan gluten-free?

    Seitan is NOT gluten-free. In fact, seitan is pretty much 100% wheat gluten! Do not feed this dish to any of your celiac friends and family.

    However, you can substitute the seitan in this dish for tofu or tempeh. All tofu and most tempeh are gluten-free, so check the labels before using. Additionally, you will want to check your teriyaki marinade's label to make sure that it is also gluten-free if you want to make this dish celiac-friendly.

    More Recipes

    • Explore more seitan recipes here on VegKitchen.
    • Mushroom lovers, rejoice! Here are more mushroom recipes for you.

    Recipe

    Roasted Seitan with Peppers and Mushrooms

    Roasted Seitan, Peppers, and Portobellos

    This hearty Roasted Seitan, Peppers, and Portobellos dish is super easy to throw together, yet festive enough for special occasions. Recipe adapted from Vegan Holiday Kitchen.
    5 from 1 vote
    Print Pin Rate Email
    Course: Seitan Main dish
    Cuisine: Vegan / Healthy
    Diet: Vegan, Vegetarian
    Keyword: seitan recipe
    Prep Time: 15 minutes
    Cook Time: 30 minutes
    Total Time: 45 minutes
    Servings: 8
    Calories: 192kcal
    Author: Veg Kitchen

    Ingredients

    • 2 lbs seitan cut into bite-sized chunks
    • 1 red bell pepper cut into wide strips
    • 1 yellow bell pepper cut into wide strips
    • 2 medium-small zucchinis sliced ½ inch thick
    • 8–10 oz portobello mushrooms stemmed and sliced
    • 2 tbsp olive oil
    • ½ cup teriyaki marinade store-bought or homemade
    • 3–4 scallions thinly sliced
    • freshly ground pepper to taste
    • dried hot red pepper flakes optional, to taste
    • ¼ cup fresh parsley minced
    US Customary - Metric

    Instructions

    • Preheat the oven to 400º F.
    • In a large mixing bowl, combine the seitan, bell peppers, zucchinis, olive oil, and teriyaki marinade. Stir together. Transfer to a roasting pan.
    • Roast in the oven for 15 minutes, stirring occasionally. Stir in the scallions, then roast for 5 to 10 minutes longer or until the seitan and vegetables have a few charred spots.
    • Transfer the mixture to a serving container. Season to taste with pepper and optional dried hot red pepper flakes. Sprinkle with parsley and keep covered until serving.

    Nutrition

    Calories: 192kcal | Carbohydrates: 12g | Protein: 27g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Sodium: 1206mg | Potassium: 357mg | Fiber: 3g | Sugar: 5g | Vitamin A: 796IU | Vitamin C: 58mg | Calcium: 22mg | Iron: 2mg
    Vegan-ize any recipe!Grab our free vegan cheat sheet, packed with my favorite easy substitutions to make any recipe vegan.

    Photos by Susan Voisin.

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    Reader Interactions

    Comments

    1. Clara Johnson says

      August 17, 2018 at 9:52 am

      5 stars
      I love his recipe! Any tips for cooking it on a grill during the summer?

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    Hi, I'm Nicole! I'm the creator behind VegKitchen, and the author of the popular cookbook, Weeknight One Pot Vegan Cooking. Learn more about me here.

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