This Easy Chicken Fajita Casserole is a delicious mix of chicken, bell peppers, and cheese. It’s all baked together for a cozy meal that’s great for busy nights!
I love how quick this is to throw together. Just chop, mix, and bake! Plus, the leftovers (if there are any) are just as tasty the next day!
Key Ingredients & Substitutions
Cooked Chicken: Shredded rotisserie chicken is my go-to. It’s quick, easy, and adds great flavor. You can also use cooked turkey or tofu for a vegetarian option.
Bell Peppers: I love the sweetness of red and green peppers, but feel free to mix in yellow or orange peppers for a different taste. If you’re avoiding peppers, zucchini or spinach can work, too!
Sour Cream: Greek yogurt is a fantastic alternative if you’re looking for a healthier option or to cut down on calories. It adds creaminess just like sour cream.
Diced Tomatoes with Green Chilies: If you don’t have this canned option, use fresh tomatoes and add a pinch of jalapeño for heat. Canned diced tomatoes work well, too, but you may want to add a bit of spice.
What’s the Best Way to Cook the Peppers and Onions?
Sautéing the peppers and onions unlocks their flavors and softens their texture. Here’s the best way to do it:
- Heat oil in a skillet over medium heat.
- Add the diced onions first, cooking for 2-3 minutes until they start to soften.
- Then, add the bell peppers and cook for another 5 minutes. Stir frequently.
- They should be tender with just a bit of sweetness. Remove from heat and add to your chicken mixture.
Remember not to overcrowd the pan; this ensures even cooking and caramelization!
Easy Chicken Fajita Casserole
Ingredients You’ll Need:
- 2 cups cooked, shredded chicken breast
- 1 red bell pepper, diced
- 1 green bell pepper, diced
- 1 small onion, diced (optional)
- 1 cup sour cream
- 1 can (10 oz) diced tomatoes with green chilies, drained
- 1 packet (1 oz) fajita seasoning mix
- 1 1/2 cups shredded Mexican blend cheese (cheddar and Monterey jack)
- 1 cup cooked rice (optional)
- 1/2 cup salsa (optional)
- 1 tbsp olive oil or cooking oil
- Salt and pepper to taste
How Much Time Will You Need?
This delicious casserole will take about 10 minutes to prepare and 25 minutes to bake. In total, you’re looking at around 35 minutes from start to finish—perfect for a quick weeknight dinner!
Step-by-Step Instructions:
1. Preheat Your Oven:
Start by preheating your oven to 375°F (190°C). This way, it will be hot and ready for your casserole when you’re done mixing!
2. Sauté the Vegetables:
In a skillet, heat the olive oil over medium heat. Add the diced red and green bell peppers, and the onion (if you’re using it). Sauté them for about 5 minutes until they are soft and fragrant. This step brings out the best flavors!
3. Mix It All Together:
In a large mixing bowl, combine the cooked shredded chicken, sautéed vegetables, sour cream, drained diced tomatoes with green chilies, fajita seasoning mix, cooked rice (if you want to add it), salsa (if using), and salt and pepper. Stir everything together thoroughly until it’s all well combined.
4. Assemble the Casserole:
Spread the chicken and veggie mixture evenly into your greased 9×13-inch baking dish. This is where all the deliciousness comes together!
5. Add the Cheese:
Sprinkle the shredded Mexican blend cheese evenly over the top of the mixture. Don’t be shy—cheese makes everything better!
6. Bake It Up:
Place the casserole in the oven and bake it uncovered for 20-25 minutes, or until the cheese is melted and bubbly. The aroma will fill your kitchen!
7. Serve and Enjoy:
Once out of the oven, let your casserole cool for just a few minutes. Then, serve it warm. This casserole can be enjoyed on its own or garnished with sliced avocado, chopped cilantro, or a dollop of sour cream for an extra burst of flavor!
Enjoy your easy, cheesy chicken fajita casserole! Perfect for family dinners or meal prep for the week ahead!
FAQ for Easy Chicken Fajita Casserole
Can I Use Fresh Chicken Instead of Cooked Chicken?
Yes, you can use raw chicken! Just cook the chicken breast first, shred it, and then follow the recipe as directed. You can bake the chicken in the oven at 375°F for about 20-25 minutes, or until fully cooked, before adding it to the casserole.
How Can I Make This Recipe Spicier?
If you’re looking to add some heat, consider using spicy salsa or adding sliced jalapeños to the mixture. You can also use a spicier fajita seasoning mix to kick it up a notch!
Can I Make This Dish Ahead of Time?
Absolutely! You can prepare the casserole up to the baking step, cover it tightly, and refrigerate for up to 24 hours. When ready to bake, just add a few extra minutes to the cooking time as it will need more time if it’s cold from the fridge.
What’s the Best Way to Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it in the oven at 350°F until heated through, or microwave individual portions for a quick meal.
