Mouthwatering Chicken Fajita Casserole Recipe

Flavor-Packed Chicken Fajita Casserole Recipe for Dinner Joy

Weeknight dinners demand something special, and this chicken fajita casserole recipe delivers pure comfort with a southwestern twist.

Layers of tender chicken, vibrant bell peppers, and melted cheese create a mouthwatering one-dish wonder.

Packed with bold flavors and easy preparation, this casserole brings the zesty essence of Mexican cuisine right to your table.

Spices dance through each bite, promising a meal that satisfies deep hunger and culinary curiosity.

Home cooks will appreciate how quickly this dish comes together without sacrificing taste or excitement.

Every forkful promises a perfect blend of protein, vegetables, and irresistible cheesy goodness.

Dive into this delicious meal that transforms ordinary ingredients into an extraordinary dining experience.

Step-By-Step Instructions For Chicken Fajita Casserole

  • Oven Warmup

Crank up the oven to a toasty 375°F. Grab a rectangular baking dish and give it a quick spray of cooking oil to prevent any sticky situations.

  • Sizzling Protein Dance

Heat up a skillet with a splash of olive oil. Toss in chicken strips and let them sizzle and transform into golden treasures. Sprinkle some magic seasoning to infuse serious flavor. Cook until the chicken looks perfectly bronzed and almost done.

  • Colorful Layer Party

Spread the chicken across the baking dish like a delicious canvas. Scatter vibrant bell peppers and onions all around. Dust everything with the remaining fajita magic. Blanket the entire creation with a generous snow of melty cheese.

  • Baking Transformation

Cover the dish with foil and let the oven work its magic for 20 minutes. Then reveal the masterpiece and let it bake uncovered for another 10 minutes until the cheese becomes irresistibly bubbly.

  • Flavor Finale

Sprinkle fresh cilantro on top like confetti. Serve with your favorite sidekicks like sour cream or salsa. Enjoy this flavor explosion solo or wrapped in a warm tortilla.

Helpful Tips For Chicken Fajita Casserole

  • Flavor Boost Technique: Marinate chicken in lime juice and additional spices for 30 minutes before cooking to intensify the fajita flavor and tenderize the meat.
  • Low-Carb Transformation: Replace tortillas with cauliflower rice or serve over zucchini noodles for a keto-friendly version that keeps all the delicious southwestern taste.
  • Protein Power Swap: Substitute chicken with lean turkey, shrimp, or plant-based protein like tofu for a versatile meal that suits different dietary preferences and keeps the recipe exciting.
  • Veggie Lover's Expansion: Add extra vegetables like mushrooms, corn, or spinach to increase nutritional value and create more texture in the casserole. Chop vegetables into similar-sized pieces to ensure even cooking and consistent flavor distribution.

Simple Serving Ideas For Chicken Fajita Casserole

  • Fiesta Flavor Boosters: Customize your Chicken Fajita Casserole experience with these delightful serving suggestions.
  • Taco Night Transform: Spread the casserole inside warm tortillas for a handheld fajita feast that brings extra zest to your meal.
  • Fresh Crunch Companion: Top with diced fresh tomatoes, crisp lettuce, and sliced jalapeños for added texture and bright flavors that complement the rich cheese and seasoned chicken.
  • Hearty Side Kick: Serve alongside Mexican-style rice or black beans to create a complete dinner plate that satisfies every hungry diner with layers of delicious southwestern goodness.

Plan And Store Chicken Fajita Casserole Easily

  • Meal Time Scheduling: Prepare this casserole in advance during weekend meal prep for quick weeknight dinners. Chop vegetables and cook chicken earlier to reduce final cooking time.
  • Smart Refrigeration: Store leftovers in airtight containers for up to 3-4 days. Separate cheese and toppings to maintain optimal texture when reheating.
  • Freezer-Friendly Strategy: Wrap unbaked casserole tightly in plastic wrap and aluminum foil. Freeze for maximum 2 months. Thaw overnight in refrigerator before baking, adding 10-15 minutes to cooking time.
  • Portion Control Technique: Divide casserole into individual serving portions before storing. This allows easier reheating and prevents repeatedly warming entire dish, which can reduce food quality.

Quick Recipe Overview

Prep Time: 15 minutes

Cook Time: 30 minutes

Total Time: 45 minutes

Calories: 350 kcal

Servings: 5

What’s In Chicken Fajita Casserole

For Protein Base:
  • Chicken Strips: Lean protein that brings hearty flavor and tender texture to the casserole, choosing fresh, trimmed chicken ensures optimal taste and texture..
  • Olive Oil: Essential for searing chicken and adding rich, smooth cooking foundation with a heart-healthy Mediterranean touch..
For Seasoning and Flavor Enhancers:
  • Fajita Seasoning: Zesty spice blend that infuses vibrant southwestern warmth and depth, selecting a high-quality mix guarantees authentic Mexican-inspired taste..
  • Salt and Pepper: Classic seasoning duo that elevates and balances overall dish's flavor profile, using freshly ground black pepper provides maximum aromatic impact..
For Texture and Topping Components:
  • Bell Peppers: Colorful vegetable that adds crisp texture and sweet freshness, selecting a mix of red, green, and yellow peppers creates visual appeal..
  • Onions: Provides savory undertone and caramelized sweetness, choosing sweet yellow onions enhances overall dish complexity..
  • Cheddar Cheese: Sharp, melty cheese that delivers rich, tangy flavor and creamy consistency..
  • Mozzarella Cheese: Mild, stretchy cheese that creates irresistible golden-brown topping with perfect melting qualities..
  • Cilantro: Bright, herbal garnish that brings fresh, citrusy note and authentic Mexican restaurant feel..
  • Sour Cream: Creamy, cool accompaniment that balances spicy flavors and adds luxurious finish..
  • Guacamole: Rich, smooth avocado-based side that complements casserole's robust taste..
  • Salsa: Zesty, fresh condiment that introduces additional layer of vibrant flavor.

Kitchen Tools For Chicken Fajita Casserole

  • Large Skillet: Essential for cooking chicken to golden perfection and releasing amazing flavors.
  • 9×13-inch Baking Dish: Perfect size for layering ingredients and creating a delicious casserole.
  • Aluminum Foil: Used to cover the dish during initial baking, keeping moisture locked in.
  • Cheese Grater: Helpful for shredding fresh cheddar and mozzarella cheese for a melty topping.
  • Cutting Board: Needed for slicing bell peppers, onions, and chopping cilantro.
  • Sharp Knife: Crucial for preparing ingredients with precision and ease.
Print
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Mouthwatering Chicken Fajita Casserole Recipe

Mouthwatering Chicken Fajita Casserole Recipe


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4.6 from 31 reviews

  • Total Time: 45 minutes
  • Yield: 5 1x

Description

Hearty chicken fajita casserole brings Mexican-inspired comfort straight to dinner tables. Layers of seasoned chicken, peppers, and cheese create a simple one-pan meal that satisfies hungry families.


Ingredients

Scale
  • 1 lb (454 g) boneless, skinless chicken breasts, cut into strips
  • 1 cup shredded cheddar cheese
  • 1 cup shredded mozzarella or monterey jack cheese
  • 1 tbsp fajita seasoning (or use a mix of chili powder, cumin, paprika, and garlic powder)
  • 1 large onion, sliced
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 green bell pepper, sliced
  • 1 tbsp olive oil
  • ½ tsp salt
  • ½ tsp black pepper
  • ¼ cup chopped cilantro (for garnish)
  • Sour cream (for serving)
  • Guacamole (for serving)
  • Salsa (for serving)

Instructions

  1. Preparation: Ignite the oven to 375F (190C) and lightly grease a 9×13-inch baking dish to prevent adhesion.
  2. Protein Sautéing: In a large skillet over medium-high heat, sizzle olive oil and introduce chicken strips seasoned with salt, pepper, and half the fajita spice. Cook until chicken achieves a golden exterior and near-complete tenderness, roughly 5 minutes, then transfer from heat.
  3. Layering: Spread the partially cooked chicken across the baking dish, then cascade bell peppers and onions uniformly. Dust remaining fajita seasoning over the vegetable landscape and blanket generously with cheddar and mozzarella cheeses for complete coverage.
  4. Baking Process: Drape the casserole with aluminum foil and roast in the preheated oven for 20 minutes. Remove the foil and continue baking an additional 10 minutes until cheese melts into a bubbling, golden terrain.
  5. Serving: Withdraw the casserole from the oven and garnish with freshly chopped cilantro. Present with accompaniments like sour cream, guacamole, or salsa, paired with warm tortillas or fluffy rice for a complete culinary experience.

Notes

  • Optimize Chicken Temperature: Ensure chicken reaches 165°F internal temperature to guarantee food safety without overcooking, maintaining tender meat texture.
  • Customize Spice Levels: Adjust fajita seasoning intensity by increasing or decreasing spice blend to match personal heat preferences or dietary restrictions.
  • Vegetable Precision: Cut bell peppers and onions uniformly to promote even cooking and consistent texture throughout the casserole.
  • Cheese Melting Technique: Allow cheese to brown slightly during final uncovered baking stage for enhanced flavor complexity and appealing golden-brown surface.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dinner, Lunch
  • Method: Baking
  • Cuisine: Mexican

Nutrition

  • Serving Size: 5
  • Calories: 350
  • Sugar: 4 g
  • Sodium: 600 mg
  • Fat: 20 g
  • Saturated Fat: 8 g
  • Unsaturated Fat: 12 g
  • Trans Fat: 0 g
  • Carbohydrates: 14 g
  • Fiber: 3 g
  • Protein: 30 g
  • Cholesterol: 100 mg
Liam O’Sullivan

Liam O’Sullivan

Founder & Culinary Content Creator

Expertise

Recipe Development​, Traditional Irish and European Cuisines, Food Styling and Photography, Culinary Education​

Education

Dublin Institute of Technology (DIT) – School of Culinary Arts and Food Technology

  • Degree: Bachelor of Arts in Culinary Arts
  • Focus: Comprehensive training in classical and modern cooking techniques, kitchen management, and menu development.​

Ballymaloe Cookery School

  • Program: 12-Week Certificate Course
  • Focus: Intensive, hands-on experience emphasizing farm-to-table cooking and sustainable practices.​

Isabella brings a global spark to the Craft Meats table. Born in Florence and trained at the Apicius International School of Hospitality, she blends classic Italian flavor with modern writing that’s easy to follow and hard to forget. 

Her additional training at the Italian Chef Academy fueled her love for well-crafted dishes, especially ones that spotlight beautiful cuts of meat.

She’s a food writer with heart, and a deep love for storytelling through single recipes. Her goal? To help you cook with more confidence and a little more joy, no matter where you start.

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