One sweltering Saturday afternoon last summer, I returned from pulling weeds in the garden to find my daughter on her laptop, watching a travel vlog in a tiny beach town. She paused it and said she missed family meals, something warm and shared around the table. That sparked this casserole.
I grabbed leftover chicken from our Thursday roast, rice from the pantry, and pulled a frozen pepper blend from the freezer. My grandson peeked in, curious about the colorful mix I was tossing together, and asked if it tasted like fajitas. I couldn’t resist replying with a grin—“Even better, it bakes in one dish.”
Soon, the kitchen smelled of sizzling peppers, fajita spices, and melted cheese. My granddaughter, fresh back from summer camp, slid into a stool and helped stir. It reminded me of holiday buffet dinners at Grandma’s, everyone gathered around, grabbing a spoonful straight from the baking dish. When the timer chimed, we scraped off the foil and saw bubbling cheese glittering over rice and chicken.
We served it at the table with tortillas, salsa, and a crisp salad. The smiles, the stories, hand passes of cheese, reminded me why food is so much more than nourishment. This Fajita Chicken Casserole Bake does everything in one pan and brings everyone close together.
Short Description
A one-dish casserole combining seasoned chicken, instant rice, peppers, tomatoes, and cheese for a comforting, fajita-inspired bake that’s easy, flavorful, and family friendly.
Key Ingredients
- 4 cups (600 g) shredded cooked chicken breast
- 2 cups (370 g) uncooked instant white rice
- 1 can (298 g) cream of chicken soup
- 1 cup (240 g) sour cream
- 1 cup (140 g) frozen diced onion and bell pepper blend
- 1 can (284 g) diced tomatoes with chilies, undrained
- 360 ml chicken broth
- 1 packet (32 g) fajita seasoning
- 1 bag (227 g) shredded Mexican-style cheese blend
Tools Needed
- 23×33 cm (9×13-inch) ovenproof baking dish
- Large mixing bowl
- Spatula or large spoon
- Aluminum foil
- Measuring cups and spoons
Cooking Instructions
Step 1: Grease the Dish
Lightly coat a 9×13-inch baking dish with nonstick cooking spray. This keeps the casserole from sticking and eases cleanup.
Step 2: Combine Ingredients
In a large mixing bowl, add shredded chicken, uncooked instant rice, cream of chicken soup, sour cream, frozen onion and pepper blend, diced tomatoes with chilies (undrained), chicken broth, fajita seasoning, and half of the shredded cheese.
Stir thoroughly until everything is evenly mixed. The filling should look creamy with pops of color.
Step 3: Spread in Dish
Spoon the mixture evenly into the prepared baking dish. Smooth the top with a spatula so the casserole bakes evenly.
Step 4: Bake Covered
Cover the dish with aluminum foil and bake in a preheated 175°C oven for 35 minutes. This allows the rice to cook fully and soak up the flavorful liquids.
Step 5: Add Cheese and Bake Uncovered
Remove the foil and sprinkle the remaining cheese evenly across the top. Return the dish to the oven and bake uncovered for another 10 minutes until the cheese is melted, bubbling, and lightly golden.
Step 6: Rest and Serve
Let the casserole rest for at least 5 minutes after baking. This helps it set slightly. Serve warm, straight from the dish, with optional sides like sliced avocado, fresh cilantro, lime wedges, or warm tortillas.
Why You’ll Love This Recipe
Flavor Packed: Chicken, rice, fajita spices, peppers, and chili-tomato meld into a savory, comforting bake.
Effortless One-Dish Meal: Assembled in minutes and baked all together—no separate pots.
Versatile and Feed-A-Crowd Friendly: Perfect for family dinners, potlucks, or weeknight meals.
Customizable: Add beans, corn, switch to brown rice, or use Greek yogurt in place of sour cream.
Kid Approved: Mild spices keep it family friendly while still packed with flavor.
Mistakes to Avoid & Solutions
Rice stays undercooked:
Solution: Ensure foil is tight to trap steam for rice to plump up.
Casserole too soupy:
Solution: Use instant rice and drain any excess tomato juice before mixing.
Cheese doesn’t melt evenly:
Solution: Add cheese before finishing uncovered and spread evenly.
Edges burn before center cooks:
Solution: Cover well and bake until bubbling at the center before uncovering.
Dish sticks to pan:
Solution: Grease dish well, or line with parchment paper for easy lifting.
Serving and Pairing Suggestions
Scoop with warm flour or corn tortillas for a fajita-style wrap.
Pair with a crunchy cabbage slaw dressed in lime juice and cilantro.
Serve alongside sliced avocado and fresh salsa.
Offer refried beans or a mixed bean salad on the side.
Perfect for buffet tables at family gatherings or game-night spreads.
Storage and Reheating Tips
Refrigerate leftovers in an airtight container for up to 4 days.
Reheat in microwave or oven at 350°F (180°C) until heated through, about 10 minutes in oven.
Freeze: Portion into freezer-safe containers, freeze up to 3 months. Thaw overnight and bake at 350°F until warmed.
Prevent dryness: Add a splash of chicken broth before reheating to restore moisture.
Re-crisp top: For a bubbly finish, briefly broil for 1–2 minutes before serving.
FAQs
1. Can I use brown rice instead of white rice
Yes though it needs longer cooking time and more liquid adjust broth accordingly
2. Can I make this dairy free
Yes use dairy free sour cream and cheese alternatives these days melt well
3. Is it spicy
No it is mild fajita seasoning but you can add extra chili or hot sauce for more heat
4. Can I swap chicken for turkey
Absolutely leftover turkey works great and adds flavor and lean protein
5. Can I prep it ahead
Yes assemble, cover, refrigerate overnight then bake next day just add 5 extra minutes to cook time
Tips & Tricks
Use leftover roasted chicken or rotisserie chicken to save time
Let mixture rest 5 minutes before adding cheese to reduce sogginess
Mix in a handful of fresh cilantro after baking for freshness
Add a squeeze of lime before serving to brighten flavors
For extra texture stir in ½ cup corn or black beans before baking
Recipe Variations
Vegetarian Version: Replace chicken with black bean and corn mixture. Use vegetable broth. Follow the same assembly and bake method.
Low-Carb Option: Substitute rice with cauliflower rice and reduce broth by half. Bake time remains the same.
Creamy Jalapeño Twist: Stir in 1 diced jalapeño and ½ cup cream cheese with sour cream mixture. Top with jalapeño slices after cheese finish bake.
Tex-Mex Fiesta: Add ½ cup salsa and 1 tsp smoked paprika. Top with crushed tortilla chips and chopped green onions after baking.
Final Thoughts
That afternoon, surrounded by the scent of spices and laughter, reminded me why comfort food endures. This casserole is warm and satisfying with hearty chicken and tender rice layered beneath a golden cheese crust. It’s simple enough for a weekday supper yet carries memories of family dinners and backyard cookouts.
It reflects a lifetime of gathered meals, warm conversations, and the joy of feeding loved ones. I hope it becomes a staple in your home too, bringing comfort, flavor, and togetherness—one satisfying scoop at a time.

Ingredients
- 4 cups (600 g) shredded cooked chicken breast
- 2 cups (370 g) uncooked instant white rice
- 1 can (298 g) cream of chicken soup
- 1 cup (240 g) sour cream
- 1 cup (140 g) frozen diced onion and bell pepper blend
- 1 can (284 g) diced tomatoes with chilies, undrained
- 360 ml chicken broth
- 1 packet (32 g) fajita seasoning
- 1 bag (227 g) shredded Mexican-style cheese blend
Instructions
Step 1: Grease the Dish
Spray a 9×13-inch baking dish with nonstick spray to prevent sticking.
Step 2: Combine Ingredients
Mix chicken, uncooked rice, soup, sour cream, frozen peppers, undrained tomatoes, broth, fajita seasoning, and half the cheese in a large bowl until well combined.
Step 3: Fill the Dish
Spread the mixture evenly in the baking dish and smooth the top.
Step 4: Bake Covered
Cover with foil and bake at 175°C (350°F) for 35 minutes.
Step 5: Add Cheese and Bake Again
Uncover, sprinkle remaining cheese, and bake 10 more minutes until bubbly and golden.
Step 6: Rest and Serve
Let rest 5 minutes before serving. Enjoy with avocado, cilantro, lime, or tortillas.