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    Home / Recipes / Soups

    Vegan Fajita Soup

    Published: Feb 1, 2023 by Kathy Carmichael · This post may contain affiliate links.

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    Fajita soup is a savory Mexican soup with fajita ingredients in a bowl of slightly spicy broth and noodles. This fajita soup recipe is so easy, and it's done in under 20 minutes in one pot!

    Vegan fajita soup is served in a bowl on the table.

    When I planned dinner last night, I prepped fajitas. Then, I realized I didn't have tortillas! Yes, that happens to me too, but since I chopped all the ingredients, I switched it up and made fajita soup instead. What is fajita soup you may ask? Fajita soup combines all your favorite fajita goodies in a bowl of slightly spicy broth. And what makes it even better is it takes less than 20 minutes and one pan to make this tasty fajita soup recipe.

    Jump to:
    • Fajita Soup Ingredients
    • Fajita Soup Ingredient Substitutions
    • How to Make Fajita Soup
    • Homemade Fajita Seasoning Mix Ingredients
    • Fajitas Seasoning Mix Ingredient Substitutions
    • Servings Suggestions
    • Recipe FAQs
    • Tips
    • Soup Lovers...Enjoy These Vegan Soups
    • 📖 Recipe
    • 💬 Reviews

    I love soup when it's cold outside and even when it isn't. Today, I had that soup-loving feeling. But, I also wanted to make something quick and easy one would love. Luckily, I hit a home run.

    Fajita Soup Ingredients

    White onions, jalapenos, red, yellow, and orange bell peppers are cut on a cutting board.

    Believe it or not, I used the exact ingredients I pre-cut for fajitas:

    • Portobello Mushrooms:
    • White Onions:
    • Yellow Bell Pepper: Yellow bell peppers taste similar to red bell peppers but are bright yellow.
    • Red Bell Pepper: Red bell peppers are sweet and provide a beautiful red color.
    • Orange Bell Pepper: Like red bell peppers, orange bell peppers add beautiful colors.
    • Jalapenos: Deseeded and deveined jalapenos give the soup a slightly spicy flavor.
    • Garlic: I prefer using fresh garlic cloves whenever possible
    • Rotel Tomatoes: Rotel Tomatoes come in different varieties: original, hatch chili, mild, or Mexican style with lime and cilantro, so you can choose whichever flavor you prefer.
    • Organic Vegetable Broth: I buy organic vegetable broth in bulk at Costco because I often use it.
    • Flour: I used oat flour as my thickener.
    • Nutritional Yeast: Nutritional yeast is a thickener that adds a cheesy flavor to the fajita soup recipe.
    • Pasta: I chose whole-grain spiral noodles for the fajita soup.
    • Fajita Seasoning (homemade version below or use your favorite vegan package mix.)I like to make my own seasonings, so I know their ingredients.

    Fajita Soup Ingredient Substitutions

    • Choose any type of mushroom.
    • Yellow onions are an excellent substitute for white onions in recipes.
    • Baby bell peppers are fun to add because they come in various colors.
    • Serrano peppers are similar to jalapenos in flavor.
    • One clove of garlic equals about ⅛th of a teaspoon of garlic powder.
    • Use canned diced tomatoes instead of Rotel tomatoes.
    • Yondu is a substitute for vegetable broth mixed with water.
    • Choose any type and shape of pasta.
    • If you don't have nutritional yeast, soy sauce often replaces the umami flavor provided by the nutritional yeast.
    • Make your own fajita seasoning, or opt for a packaged variety.

    How to Make Fajita Soup

    I am sauteing garlic, mushrooms, and onions in a soup pot on the stove.

    Begin with a deep soup pot. The next step is to saute the garlic, onions, and portobello mushrooms until the onions are translucent and the mushrooms are browned. 

    I am adding the bell peppers and and jalapenos to eh soup pot.

    Then, add all the peppers and cook for about 5 minutes until the peppers soften. 

    I am adding the uncooked noodles to the pepper mixture in the pot.

    Once the peppers and combined with the mushrooms, onions, and garlic, add the Rotel tomatoes, and noodles of choice and stir. 

    I am adding vegetable broth, fajita seasoning, flour, and nutritional yeast to the pot on the stove.

    Although you can use a store-bought fajita seasoning, I prefer to make my own seasoning. 

    Top with vegetable broth mixed with flour, nutritional yeast, and fajita seasoning, and bring to a boil. Once boiling, cover and reduce heat to low and simmer for 15 minutes.

    As a result, you have a slightly spicy, savory fajita soup. 

    Homemade Fajita Seasoning Mix Ingredients

    • Chili Powder: Chili Powder is a spice blend made with ground red chilis, often including cayenne, as well as spices such as cumin, Mexican oregano, paprika, garlic powder, onion powder, and salt.
    • Cumin: Cumin is rich and hearty, earthy and warm, with an edge of citrus. Cumin adds instant depth to any dish. Use ground Cumin rather than whole Cumin seed in recipes where you want the flavor to disperse evenly throughout.
    • Paprika: Paprika is made from the dried, ground, ripened fruit pods of less pungent varieties of the Capsicum annum species. It is mildly flavored and prized for its brilliant red color. It is closely related to red pepper, which derives from the Capsicum annuum species.
    • Coconut Sugar: Regular table sugar has a glycemic index (GI) of 65, while coconut sugar has a GI of 35. This is much closer to the GI of the sugar that's naturally found in fruits, which is around 25. Coconut sugar contains iron, zinc, and calcium, which can have many health benefits.
    • Garlic Powder: Garlic powder is garlic's dried and finely ground form.
    • Onion Powder: Onion powder is basically dried onion that's been ground. Although dried onion is just the onion flesh, onion powder can also include dehydrated onion skins and roots. Onion powder is three times more potent than dried onion
    • Cayenne: Cayenne pepper is technically a type of chili powder, but jars and bottles labeled "chili powder" are usually made from a blend of various peppers
    • Salt to Taste: Adding a small amount of salt enhances the flavors of the other seasonings.

    Fajitas Seasoning Mix Ingredient Substitutions

    • Choose a dry package of fajita seasoning mix you enjoy.
    • Or there are also wet marinades in sealed bags available for purchase.
    • If you follow an oil-free plant-based diet, make sure to check dry seasoning packages, as well as wet ones, as many include oil.
    Fajita Soup recipe in a bowl on the counter

    Servings Suggestions

    Although this soup cooks in one pot, I always like to add some toppings to make it unique. Most of the time, I serve toppings on the side, so everyone chooses their own favorite toppings.

    • Avocado Slices
    • Extra Jalapeno Slices
    • Diced Tomatoes
    • Vegan Sour Cream
    • Salsa
    • Cilantro 
    • Lime Wedges

    Recipe FAQs

    What is the most popular soup in Mexico?

    Aztec or tortilla soup is the most popular soup in Mexico.

    Are fajitas Texan or Mexican?

    Fajitas are Tex-Mex, a combination of Texan and Mexican. Fajitas are am Americanized Mexican food.

    What is the most famous Mexican soup?

    Gazpacho, a cold tomato-based soup, is the most famous soup in Mexico.

    Tips

    • Make this soup in one pot by cooking the ingredients in layers.
    • To avoid clumps with the flour or nutritional yeast, whisk or blend the flour and nutritional yeast into the vegetable broth before adding it to the soup.
    • Once the flour and nutritional yeast are added to the soup, let the broth thicken by stirring it into the ingredients before serving.
    • Since this is a Tex-Mex soup, I suggest serving it with a southwest salad and cornbread.
    • This fajita soup recipe stays fresh for up to five days in the refrigerator.
    Vegan fajita soup on the table

    Make fajita soup if you are ever looking for a new way to eat a fajita. Not only will this soup warm you from the inside out, but it's also just like eating a fajita without the tortilla. MMM GOOD! 

    Soup Lovers...Enjoy These Vegan Soups

    • vegan goulash recipe
      Vegan Goulash
    • Lentil Stew
    • Roasted vegetable soup recipe
      Roasted Vegetable Soup
    • vegan chicken and dumplings recipe
      Vegan Chicken and Dumplings

    If you love this fajita soup recipe, give us a 5-star review and comment below. WE would love to hear from you!

    📖 Recipe

    fajita soup recipe

    Fajita Soup

    Kathy Carmichael
    Fajita soup is a savory Mexican soup with fajita ingredients in a bowl of slightly spicy broth and noodles. Now, this is how fajitas should be eaten...with a spoon. And it's done in under 20 minutes in one pot!
    4.78 from 9 votes
    Print Recipe Pin Recipe
    Prep Time 5 mins
    Cook Time 15 mins
    Total Time 20 mins
    Course Soups
    Cuisine Mexican
    Servings 6 servings
    Calories 200 kcal

    Ingredients
      

    • 3 cloves garlic minced
    • 1 white onion cut into thin strips
    • 1 yellow bell pepper cut into thin strips
    • 1 red bell pepper cut into thin strips
    • 1 jalapeño deseeded and deveined, cut into thin strips
    • 10 ounces Rotel Tomatoes with green chilis
    • 8 ounces sliced portobello mushrooms
    • 8 ounces pasta of choice
    • 4 cups organic vegetable broth
    • 2 Tablespoons oat flour or flour of choice
    • 2 Tablespons nutritional yeast

    Fajita Seasoning (1 package store-bought or homemade)

    • 4 teaspoons chili powder
    • 2 teaspoons cumin
    • 2 teaspoons paprika
    • 2 teaspoons sugar or sub maple syrup or date syrup
    • 1 teaspoon garlic powder
    • 1 teaspoon onion powder
    • ½ teaspoon cayenne pepper
    • Salt to taste

    Instructions
     

    • Saute garlic, onions, and mushrooms until the onions are translucent and browned.
    • Add all pepper and saute with mushrooms, onions, and garlic for a few minutes until softened.
    • Then add pasta and Rotel tomatoes.
    • Stir to combine.
    • Add fajita seasoning and vegetable broth mixed with the flour and nutritional yeast.
    • Bring to a boil, cover, and reduce heat to low.
    • Simmer for 15 minutes.
    • Ladle into bowls and serve with optional garnishes.

    Notes

    • Make this soup in one pot by cooking the ingredients in layers.
    • To avoid clumps with the flour or nutritional yeast, whisk or blend the flour and nutritional yeast into the vegetable broth before adding it to the soup.
    • Once the flour and nutritional yeast are added to the soup, let the broth thicken by stirring it into the ingredients before serving.
    • Use gluten-free pasta for a gluten-free option.
    • Since this is a Tex-Mex soup, I suggest serving it with a southwest salad and cornbread.
    • This fajita soup recipe stays fresh for up to five days in the refrigerator.

    Nutrition

    Serving: 6gCalories: 200kcalCarbohydrates: 42gProtein: 7gFat: 1gSaturated Fat: 0.2gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 0.2gTrans Fat: 0.002gSodium: 363mgPotassium: 487mgFiber: 4gSugar: 8gVitamin A: 1600IUVitamin C: 73mgCalcium: 47mgIron: 2mg
    Tried our recipe?Let us know how it was!
    Kathy Carmichael

    Hi! My name is Kathy, I am a retired high school English teacher & vegan enthusiast and blogger. My entire blog is fully plant-based vegan. I truly believe what we eat & how we live determines our health & the preservation of our planet! 🙂

    www.kathysvegankitchen.com/about-me/

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    Reader Interactions

    Comments

      Leave a Reply Cancel reply

    1. Jane

      February 04, 2023 at 1:42 pm

      Made this for lunch. Delicious. I added a handful of chopped kale to get in some greens.

      Reply
      • Kathy Carmichael

        February 05, 2023 at 6:49 am

        Hi Jane, great idea! I love kale. I'm glad you liked the soup. Thank you for the feedback. I appreciate it.

        Reply
    2. Becky

      February 04, 2023 at 7:37 am

      So yummy!

      Reply
      • Kathy Carmichael

        February 04, 2023 at 7:57 am

        Hi Becky, I'm s glad you liked the vegan fajita soup. Thank you for the feedback. I appreciate it.

        Reply
    3. Christie Zehringer

      February 02, 2023 at 6:00 am

      Delicious!!!!

      Reply
      • Kathy Carmichael

        February 02, 2023 at 6:56 am

        Hi Christie, I'm so glad you enjoyed the vegan fajita soup. Thank you for your feedback.

        Reply
    4. Anonymous

      August 31, 2020 at 4:33 pm

      4 stars

      Reply
    5. Anonymous

      August 21, 2020 at 11:36 am

      5 stars

      Reply

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