🌮 Chicken Fajita Casserole

A Flavor-Packed, Family-Friendly Mexican Dinner Made Easy

Looking for a meal that’s bursting with flavor, packed with nutrients, and easy enough for a weeknight? This Chicken Fajita Casserole is the answer to your dinnertime prayers. Whether you’re cooking for a family of picky eaters, meal prepping for the week, or just want something hearty and healthy, this fajita bake delivers bold flavors with minimal cleanup.

Think sizzling fajita flavors in a creamy, cheesy, comforting casserole form—without the need to stand over a hot stove or grill. It’s a winner for easy weeknight dinners for healthy families et simple dinner recipes Mexican-style lovers.

🧠 Why You’ll Love This Fajita Casserole

• One-dish wonder: No need for multiple pans or a complex cleanup. Everything bakes together in one casserole dish.
• Healthy and hearty: Packed with lean protein and veggies—this meal fuels your body without the heavy feeling.
• Personnalisable: Gluten-free, keto-friendly, and easy to adapt for vegetarian or dairy-free diets.
• Crowd-pleaser: Great for kids, spouses, friends, and potlucks alike.
• Perfect for meal prep: Reheats beautifully for lunch or dinner throughout the week.

🌶️ The Fajita Story – A Flavorful Legacy

Before diving into the recipe, it’s worth appreciating the rich culinary heritage of fajitas. Traditionally, fajitas were made from skirt steak by Mexican ranch workers in Texas. They would grill the meat over open flames, wrap it in tortillas with peppers and onions, and create what we now know and love as fajitas.

Today, fajitas have evolved into countless forms—grilled platters, tacos, bowls, and now this fajita casserole chicken version. This dish pays homage to the sizzling flavors of the original but transforms them into a cozy, modern bake perfect for today’s busy kitchens.

🛒 Ingredients You’ll Need

Here’s what you’ll need for the ultimate fajita casserole:

Protein & Veggies

• 1.5 lbs boneless, skinless chicken breasts, thinly sliced
• 1 red bell pepper, sliced into strips
• 1 green bell pepper, sliced
• 1 yellow bell pepper, sliced
• 1 large red onion, sliced
• 2 c. à soupe d'huile d'olive, for sautéing

Homemade Fajita Seasoning

(Ditch the packet—make it fresh!)

• 1 tbsp chili powder
• 1 tsp ground cumin
• 1 c. à thé de paprika fumé
• 1 c. à thé de poudre d'ail
• 1/2 tsp onion powder
• 1/2 tsp salt
• 1/2 c. à thé de poivre noir moulu
• 1/4 tsp cayenne pepper (facultatif)

Creamy Layer

• 1/2 tasse de crème sure (or Greek yogurt)
• 1/2 tasse de fromage à la crème, softened
• 1/4 cup salsa (mild or spicy)
• Juice of 1 lime

Toppings

• 1.5 cups shredded Mexican cheese blend
• Fresh cilantro, for garnish
• Tranches de jalapeños, optional
• Diced avocado, optional

👩‍🍳 Step-by-Step: How to Make Chicken Fajita Casserole

🔥 Step 1: Prep Your Oven and Pan

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish.

🧂 Step 2: Season the Chicken

In a bowl, toss chicken strips with your homemade fajita seasoning. Massage the seasoning into the meat for deep flavor.

🍳 Step 3: Sear the Chicken and Veggies

Heat olive oil in a large skillet. Sear the chicken until no longer pink (about 5-6 minutes). Remove and set aside.

In the same skillet, sauté the bell peppers and onions until just tender. They should still retain some crunch to avoid becoming mushy during baking.

🥣 Step 4: Mix the Creamy Sauce

In a small bowl, whisk together sour cream, cream cheese, salsa, and lime juice until smooth. This creamy layer helps bind the casserole and gives it irresistible richness.

🧱 Step 5: Layer the Casserole

In your casserole dish, spread the creamy sauce as a base. Add the cooked chicken, then layer the sautéed veggies over top. Sprinkle with shredded cheese.

🔥 Step 6: Bake

Cover with foil and bake for 20 minutes. Remove foil and bake for another 10 minutes, until cheese is bubbling and golden brown.

🌿 Step 7: Garnish & Serve

Top with chopped cilantro, jalapeños, or diced avocado. Serve warm and enjoy!

🍽️ Serving Suggestions

This casserole pairs well with:

• Tortillas: Scoop into warm flour or corn tortillas.
• Cilantro lime rice ou chou-fleur de riz: A zesty side for extra substance.
• Black beans or refried beans: A traditional Mexican pairing.
• Salade fraîche: Add brightness and crunch.
• Cornbread or tortilla chips: For a Tex-Mex fusion flair.

🥄 Make-Ahead & Storage Tips

Réfrigérer:

Store leftovers in an airtight container for up to 4 days.

Freeze:

Wrap tightly and freeze for up to 2 mois. Thaw overnight and bake at 350°F until warm.

Meal Prep Tip:

Portion into meal prep containers with rice or roasted veggies for quick grab-and-go lunches.

🧠 Health Benefits of This Chicken Fajita Casserole

• Haute Teneur En Protéines: Lean chicken breast keeps you full and energized.
• Faible en Glucides: No pasta or grains, just clean ingredients.
• Fiber-Rich: Bell peppers and onions offer vitamins and digestive fiber.
• Balanced Meal: Includes protein, healthy fats, and veggies in one dish.

🧑‍🍳 Variations to Try

🔁 Swap Your Protein:

• Ground turkey
• Shredded rotisserie chicken
• Steak strips
• Tofu or tempeh for a vegetarian twist

🥑 Add More:

• Corn kernels
• Black beans
• Diced tomatoes
• Jalapeños or green chilies
• Brown rice or quinoa for a hearty base

🧀 Cheese Alternatives:

• Use Monterey Jack or Pepper Jack
• Dairy-free cheese for lactose-free diets
• Skip cheese and top with guacamole instead

🥗 Lighten It Up: A Low-Calorie Option

To make this casserole even lighter:

• Use non-fat Greek yogurt instead of sour cream
• Go easy on the cheese (or use reduced-fat)
• Skip the cream cheese or swap for a plant-based version
• Load up on extra veggies like zucchini or mushrooms

🥄 Family-Friendly Additions

• Kid-approved topping: Serve with crushed tortilla chips or shredded lettuce.
• Build-your-own fajitas: Let kids fill their own tortillas for a fun dinner experience.
• Serve as a nacho topping: Spoon over tortilla chips for game day.

🎉 Great for Parties and Gatherings

This recipe is ideal for:

• Potlucks
• Tailgate parties
• Game nights
• Birthday buffets
• Holiday dinners

Double the recipe and serve with a toppings bar: sour cream, guac, pico de gallo, chopped onions, and shredded lettuce.

🔍 FAQs

Can I make this in advance?

Yes! Assemble it the night before, store in the fridge, and bake fresh the next day.

Is this keto?

It can be! Use full-fat dairy, low-carb salsa, and serve with keto-friendly sides.

Can I make this dairy-free?

Use dairy-free cream cheese, yogurt alternatives, and vegan cheese shreds.

What if I don’t have all three colors of bell peppers?

No problem. Use whatever you have! All green, all red, or a frozen pepper blend works too.

📋 Nutrition (Per Serving, 6 servings)

Nutrition will vary depending on substitutions and added ingredients.

🧾 Final Thoughts: Why This Chicken Fajita Casserole Belongs in Your Weekly Rotation

Chicken Fajita Casserole brings all the bold, vibrant flavors of Mexican cuisine into a warm, bubbly bake that’s as satisfying as it is simple. It’s comforting yet healthy, cheesy yet clean, and truly hits the spot every time. Whether you’re a busy parent, a health-conscious foodie, or just love anything with melted cheese and spice—this recipe is for you.

Don’t wait until Taco Tuesday—make every night a fiesta with this easy chicken fajitas casserole!