Slow Cooker Chicken Fajitas

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A delicious warm weather favorite with a touch of heat!

While it’s true that soups, stews, and desserts are all things that lend themselves to the slow cooker on the counter, slow cookers can also be perfect for cooking in the summer, when you don’t want to turn the oven on.

Our Slow Cooker Chicken Fajitas will give you the best of both worlds– a fix it and forget it food that is also a delicious warm weather favorite. One of the joys of slow cooking the chicken in this fajita dish is that it becomes delectably fork tender. And with some homemade blackening spice, it has a little heat too.

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Slow Cooker Chicken Fajitas

Enjoy these slow-cooked fajitas that are bursting with Mexican spices and are made with fresh ingredients.
Prep Time 15 minutes
Cook Time 3 hours
Total Time 3 hours 15 minutes
Yield 6 people
Serving Size 1 fajita
Course Dinner, Lunch
Cuisine Mexican
Author SkinnyMs.


Rub Ingredients

  • 1 teaspoon chili powder
  • 1 teaspoon hot smoked paprika
  • 1 teaspoon onion powder
  • 1 teaspoon dried oregano
  • 1 teaspoon dried red chili flakes
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon white or black pepper
  • 1/2 teaspoon cayenne

Fajita Ingredients

  • 2 boneless and skinless chicken breasts large pieces
  • 1 tablespoon olive oil divided
  • 14 1/2 ounces tomatoes with green chilies can, organic
  • 1 orange bell pepper sliced into 1 inch pieces
  • 1 red bell pepper sliced into 1 inch pieces
  • 1 yellow bell pepper sliced into 1 inch pieces
  • 1 white onion large, sliced into 1/2 inch pieces
  • 1 recipe for Clean Eating Whole Wheat Tortillas


  • Combine all of the rub ingredients in a pie plate.
  • Rub chicken breasts on both sides with 2 teaspoons of olive oil. Dredge chicken breasts on both sides with the blackening spice. Discard any remaining rub.
  • In a 4-5 quart slow cooker, layer half of the tomatoes, peppers, and onions. Top with chicken breasts. Top with remaining tomatoes, peppers, and onions.
  • Cover and cook on high heat for 3-4 hours, or on low for 4-6 hours, or until a meat thermometer inserted in the chicken registers at least 165 degrees.
  • Serve on wheat tortillas with cilantro, lime wedges, and avocado.

Nutrition Information

Serving: 1fajita | Calories: 364kcal | Carbohydrates: 29g | Protein: 21g | Fat: 19g | Saturated Fat: 4g | Cholesterol: 48mg | Sodium: 480mg | Fiber: 6g | Sugar: 5g |
SmartPoints (Freestyle): 11
Keywords Slow Cooker

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You might also like some of our other favorite taco recipes:

Shrimp Tacos with Sweet & Tangy Slaw

Cheesy Skillet Bean & Veggie Tacos

Slow Cooker Clean Eating Pork Tacos with Cilantro-Lime Slaw

Roasted Corn and Black Bean Tacos


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The SkinnyMs. team believes that all people, regardless of age, size, and fitness level, have the power to transform their lives — they just need the resources to do so. The SkinnyMs. method promotes healthy living through a combination of clean eating and regular exercise. We offer everything you need to be successful.

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