overhead shot of chicken fajita casserole with melted cheese

Freezer friendly meals

freezer friendly chicken fajita casserole

By:

GuideMyRecipe

Published:

01 Sept 2025

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Okay, real talk: life can get hectic. Between work, family, and trying to squeeze in some semblance of a social life, sometimes the last thing you want to do is spend hours slaving away in the kitchen. That's where this recipe swoops in to save the day. Think of it as your culinary superhero – ready to deliver a delicious, home-cooked meal with minimal effort. It's something that I have enjoyed creating for my family and friends.
close-up of cheesy chicken fajita casserole being served
This casserole is packed with all the flavors of your favorite chicken fajitas but in an easy-to-assemble format. We're talking juicy chicken, colorful bell peppers, savory onions, and a generous blanket of melted cheese. And the best part? It’s freezer-friendly, meaning you can make it ahead of time and have a delicious dinner ready to go whenever you need it. I accidently added a little too much cheese on my first attempt and it turned out great!
raw ingredients for chicken fajita casserole prepped and ready to assemble
Imagine coming home after a long day, knowing that all you have to do is pop this casserole in the oven. No chopping, no sautéing, no fuss. Just pure, unadulterated comfort food goodness. So, whether you're a seasoned cook or a kitchen newbie, grab your ingredients and let's get started! You won't regret it, promise! Let's get cookin', shall we?
chicken fajita casserole being taken out of the oven

Required Equipments

  • 9x13 inch baking dish
  • Large bowl
  • Knife
  • Cutting board
  • Measuring spoons
  • Measuring cups

Freezer Friendly Chicken Fajita Casserole: Frequently Asked Questions

Freezer Friendly Chicken Fajita Casserole

This Freezer-Friendly Chicken Fajita Casserole is a simple, flavorful meal that’s perfect for busy weeknights. With tender chicken, vibrant veggies, and a cheesy topping, it's a guaranteed crowd-pleaser and is a breeze to prep ahead of time!

⏳ Yield & Time

Yield: 6 servings

Preparation Time: 15 minutes

Cook Time: 35 minutes

Total Time:

🍽 Ingredients

📖 Instructions

  1. Get started by preheating your oven to 375°F (190°C). Grease a 9x13 inch baking dish with cooking spray. This prevents sticking and ensures easy cleanup.
  2. In a large bowl, combine 2 pounds of boneless, skinless chicken breasts (cut into 1-inch pieces), 1 large sliced bell pepper (any color, or a mix!), 1 medium sliced onion, 1 packet of fajita seasoning, and 2 tablespoons of olive oil. Toss everything together until the chicken and veggies are evenly coated with the seasoning and oil.
  3. Spread the chicken and veggie mixture evenly into the prepared baking dish. Make sure everything is nicely distributed for even cooking.
  4. Bake in the preheated oven for 25-30 minutes, or until the chicken is cooked through and the vegetables are tender. An internal temperature of 165°F (74°C) for the chicken is what you're aiming for. Use a meat thermometer to check!
  5. Remove the baking dish from the oven. Sprinkle 2 cups of shredded cheddar cheese (or a Mexican cheese blend) evenly over the top of the casserole. Get that cheesy goodness everywhere!
  6. Return the casserole to the oven and bake for another 5-10 minutes, or until the cheese is melted and bubbly. Keep an eye on it to prevent burning – nobody likes burnt cheese!
  7. Let the casserole cool for a few minutes before slicing and serving. This allows the cheese to set slightly and prevents it from being too runny.
  8. Serve hot with your favorite toppings, such as sour cream, guacamole, salsa, and chopped cilantro. I always have a dollop of sour cream, yum!
  9. For freezing: Allow the casserole to cool completely. Cover tightly with plastic wrap, then with a layer of aluminum foil. Freeze for up to 2-3 months. When ready to bake, thaw in the refrigerator overnight, then bake as directed.

📝 Notes

  • For a spicier kick, add a pinch of cayenne pepper to the chicken and veggie mixture.
  • Feel free to use frozen vegetables if you're short on time. Just make sure to thaw and drain them before adding them to the casserole.
  • You can also add a can of drained black beans or corn to the casserole for extra flavor and texture.
  • Make sure the casserole is properly covered before freezing to prevent freezer burn.
  • Don't overcook the chicken, as it will continue to cook in the oven while baking.

🍎 Nutrition

Calories: 350 kcal

Protein: 40 g

Fat: 15 g

Carbohydrates: 15 g

Fiber: 3 g

Calcium: 200 mg

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