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Tongs are picking up some of the finished casseroles and a visible cheese pull.
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5 from 1 vote

Chicken Fajita Casserole

Craving fajitas but short on time? My easy chicken fajita casserole is all the flavor and none of the fuss! 
Prep Time15 minutes
Cook Time30 minutes
Marinate Time30 minutes
Total Time1 hour 15 minutes
Course: Main Dish
Cuisine: American, Mexican
Keyword: casserole, fajitas
Servings: 8 people
Author: Jillian Wade

Equipment

  • Liquid measuring cup
  • measuring cups and spoons
  • Cutting board and knife
  • whisk
  • mixing bowls
  • 9x13-inch casserole dish

Ingredients

MARINADE:

  • ¼ cup vegetable oil
  • 3 tablespoons lime juice
  • 5 garlic cloves peeled and smashed
  • 2 teaspoons chile powder
  • 1 ½ teaspoon granulated sugar
  • 1 ½ teaspoon salt
  • 1 teaspoon ground cumin
  • ¾ teaspoon black pepper

FAJITAS:

  • 2 pounds boneless skinless chicken tenders sliced into strips
  • 2 large bell peppers any color, sliced into strips
  • 1 large purple or white onion sliced into strips
  • 1 cup shredded Monterey Jack cheese

CILANTRO LIME SOUR CREAM:

  • ¾ cup sour cream
  • 3 Tablespoons chopped cilantro
  • 1 teaspoon grated lime zest
  • 1 ½ teaspoons lime juice
  • ⅛ teaspoon or a pinch of salt

FOR SERVING:

  • 16 6-inch flour tortillas warmed
  • 1 lime cut into wedges
  • 2 Tablespoons chopped fresh cilantro
US Customary - Metric

Instructions

Make the Marinade:

  • Whisk 3 tablespoons of oil, lime juice, garlic, chile powder, sugar, salt, cumin, and pepper together in a bowl.

Marinate:

  • Add chicken, bell pepper and onion and toss to coat.
  • Cover and let stand at room temperature for at least 30 minutes or up to 60 minutes.

Prep Pan and Oven:

  • Move the oven rack to the middle position and preheat to 375 degrees F.
  • Lightly spray a 9x13-inch casserole dish with non-stick cooking spray.

Assemble the Casserole:

  • Evenly distribute the marinated chicken, onion, and bell peppers to your prepared pan.
  • Top with shredded cheese.

Cook the Casserole:

  • Bake for 25-30 minutes, or until the chicken’s internal temperature reaches 160 degrees F.

Make Cilantro Lime Sour Cream:

  • While the casserole cooks, make the cilantro lime sour cream.
  • Combine sour cream, cilantro, lime zest, and remaining 1 ½ teaspoons lime juice and ⅛ teaspoon salt in a bowl.

Serve:

  • Serve in warmed tortillas with cilantro lime sour cream, lime wedges, and cilantro.

Nutrition

Serving: 2fajitas | Calories: 494kcal | Carbohydrates: 37g | Protein: 34g | Fat: 23g | Saturated Fat: 8g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 6g | Trans Fat: 0.1g | Cholesterol: 98mg | Sodium: 1148mg | Potassium: 658mg | Fiber: 4g | Sugar: 6g | Vitamin A: 1386IU | Vitamin C: 46mg | Calcium: 238mg | Iron: 3mg