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Slow Cooker Chicken Fajitas Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.5 from 92 reviews
  • Author: Jessica
  • Prep Time: 15 minutes
  • Cook Time: 2 hours 30 minutes (slow cooker) or 15 minutes (instant pot including sauté and pressure cooking)
  • Total Time: 3 hours 10 minutes
  • Yield: Serves 4
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: Mexican

Description

This Slow Cooker Chicken Fajitas recipe offers tender, juicy chicken strips simmered with colorful bell peppers, onions, and flavorful homemade fajita seasonings. Perfect for a hands-off, delicious Tex-Mex meal, it can also be quickly adapted for Instant Pot cooking for a faster option without sacrificing taste or texture.

Ingredients

Scale

Chicken and Vegetables

  • 2 pounds boneless, skinless chicken breasts, sliced into thin strips
  • 3 large bell peppers, sliced
  • 1 large onion or 2 small onions, sliced
  • 15 ounces diced tomatoes or salsa

Seasonings and Liquids

  • 1/3 cup fajita seasonings (see homemade blend below)
  • Salt & pepper, to season the chicken
  • 3/4 cup low-sodium chicken broth (for Instant Pot only)

Homemade Fajita Seasoning

  • 2 tablespoons chili powder
  • 1 tablespoon cumin
  • 1 1/2 teaspoons salt (or more to taste)
  • 1 1/2 teaspoons oregano
  • 1 teaspoon paprika
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1/2 teaspoon black pepper

Instructions

  1. Prepare the Chicken: Season the sliced chicken breasts evenly with salt and pepper to enhance flavor before cooking.
  2. Slow Cooker Method: Add the seasoned chicken, sliced bell peppers, onions, diced tomatoes or salsa, and fajita seasoning into the slow cooker. Stir everything together thoroughly to combine all ingredients well. Set the slow cooker to HIGH heat for 2–3 hours or LOW heat for 4–6 hours, allowing the flavors to meld and the chicken to cook through until tender.
  3. Instant Pot Method – Sauté: Turn the Instant Pot to the sauté setting and heat the oil. Add the sliced onions and bell peppers, cooking for 3–5 minutes or until they become soft and slightly translucent.
  4. Instant Pot Method – Pressure Cook: Season the chicken with salt and pepper, then add it to the Instant Pot along with chicken broth, diced tomatoes, and fajita seasoning. Stir everything to combine. Secure the lid, close the valve and set the Instant Pot to high pressure for 8 minutes. Once cooking is complete, perform a quick release of the pressure to avoid overcooking.
  5. Final Serving Tip: Serve the chicken fajitas hot with warm tortillas, garnished with favorite toppings such as avocado, sour cream, cilantro, or shredded cheese if desired.

Notes

  • Do not leave the fajitas on the WARM setting for an extended time as this will cause the chicken to overcook and become dry.
  • For best flavor, use fresh bell peppers and onions and adjust seasoning to taste.
  • The homemade fajita seasoning can be stored in an airtight container for up to 6 months.
  • You can customize the recipe by adding other vegetables like mushrooms or zucchini.
  • Serving suggestion: accompany with Mexican rice or black beans for a full meal.

Nutrition

  • Serving Size: 1/4 of recipe
  • Calories: 310
  • Sugar: 6g
  • Sodium: 550mg
  • Fat: 5g
  • Saturated Fat: 1g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 4g
  • Protein: 42g
  • Cholesterol: 110mg

Find it online: https://jessicasrecipes.com/slow-cooker-chicken-fajitas-recipe/