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White bowl with low carb fajita soup made in the instant pot with cilantro in the background.

Fajita Soup Recipe (low carb in Instant Pot or Stovetop)

This low carb high protein fajita soup is full of spices, chicken and steak to make for a hearty meal with little fuss. Can be made in the Instant Pot or on the stove top and each serving has 4.6g net carbs and 33.4g protein!

Course Soup
Cuisine Mexican
Keyword instant pot
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 8
Calories 295 kcal
Author Denise Wright

Ingredients

  • 1 tablespoon olive oil
  • 1 pound chicken breast, thinly sliced in strips
  • 1 pound strip or sirloin steak, thinly sliced in strips
  • 1 tablespoon Better than Bouillon chicken flavored (* see notes)
  • 6 cups water (* see notes)
  • 4 tablespoons tomato paste
  • ½ cup onion, diced
  • 1 cup green peppers, sliced
  • 1 cup sweet bell peppers, sliced
  • t teaspoon salt
  • 1 tablespoon chili powder
  • 1 teaspoon cumin
  • ½ teaspoon cayenne pepper
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon oregano
  • 1 teaspoon paprika
  • 2 cloves garlic, crushed
  • garnish with cilantro, jalapeños, sour cream, avocados, shredded cheese, guacamole, whatever you want

Instructions

  1. Mix together all the spices in a small bowl and set aside.

  2. Hit the saute button on the Instant Pot and adjust to high. Add the oil, steak, chicken and half of the spices. Mix well and brown the meat.

  3. When meat is just starting to brown, hit the cancel button. Add the chopped vegetables.

  4. Mix together the water (or broth), Better than Bouillon (if using), tomato paste and the rest of the spice mix. Pour over the vegetables and secure lid.

  5. Make sure the pressure release valve should be pushed back to lock. Hit the manual button for 10 minutes. 

  6. When the soup is done let sit for a few minutes to cool down.

  7. Add soup to the bowl and garnish with cheddar cheese, sour cream, jalapeños, cilantro, guacamole, whatever you want. 

Recipe Notes

* Note if you don't have Better than Bouillon you can use chicken broth or stock and or chicken bouillon cubes and water. Just make sure you have 6 cups of liquid in place of the Better than Bouillon and water.

The nutritional information for serving without toppings is 295 calories / 14.9g fat / 6.2g carbs / 1.6g fiber / 33.4g protein = 4.6g net carbs