Cheesy Chicken and Chile Casserole

A comfort-food casserole combining seasoned chicken, roasted vegetables, and a creamy queso sauce studded with diced tomatoes and green chiles. The chicken stays moist under a blanket of melted Mexican-blend cheese, making this a weeknight dinner that feeds 4-6. Light sour cream and reduced-fat cream cheese keep it reasonable without sacrificing richness. Serve with rice, tortillas, or a simple salad for a complete meal.
Ingredients
- 1 lb boneless skinless chicken breast, cut into bite-size pieces
- 2 tsp taco seasoninghomemade (cumin, chili powder, paprika, garlic, onion)2 tspseasoning
less sodium, fresher
Full guide → - 1 tsp garlic powder
- ½ cup onion, chopped
- ½ cup bell pepper, chopped
- 1 cup shredded reduced-fat Mexican-blend cheesefull-fat Mexican-blend cheese1:1dairy
richer flavor
- ⅓ cup light sour cream
- ¼ cup light cream cheeseNeufchatel1:1dairydairy-free
slightly lower fat
- 1 10-oz can diced tomatoes with green chiles, draineddiced tomatoes + fresh jalapeños1 can + 0.25 cupvegetable
fresher heat
- fresh cilantro(optional)
Instructions
- 1
Preheat oven to 375F.
- 2
Spray an 8-by-8-inch baking pan with nonstick spray.
- 3
Add chicken to the pan and season with taco seasoning and garlic powder. Top with onion and pepper.
- 4
In a large microwave-safe bowl, combine half the cheese with sour cream, cream cheese, remaining taco seasoning, and remaining garlic powder. Microwave 1 minute until cheese melts. Stir until smooth.
- 5
Add diced tomatoes with chiles to the bowl and mix well.
- 6
Transfer mixture to the baking pan and smooth the surface. Cover with foil.
- 7
Bake 20 minutes covered.
- 8
Remove foil, top with remaining cheese, and bake until cheese melts and chicken is cooked through, about 10 minutes.
- 9
Garnish with fresh cilantro if desired.
Tips
Microwave the cheese mixture in short bursts, stirring between intervals, to avoid overheating and curdling the cream cheese.
Let the casserole rest 5 minutes after baking before serving so the filling sets slightly and portions cleanly.
Prep vegetables while the oven preheats to streamline cooking time.
Good to Know
Cover and refrigerate up to 4 days. Reheat covered at 350F for 15-20 minutes until warm through.
Assemble completely (through step 6) up to 24 hours ahead. Refrigerate covered and bake when ready, adding 5-10 minutes to the covered baking time.
Serve warm, garnished with fresh cilantro, alongside rice, tortillas, Mexican crema, or a lime-dressed salad.
Common Mistakes
Do not skip draining the tomatoes to avoid a watery casserole.
Do not overbake after adding the final cheese layer to prevent drying out the chicken.
Do not stir the cheese sauce after baking or it will become stringy; smooth it in the bowl before transferring.
Substitutions
Dairy-Free Swaps
richer flavor
slightly lower fat
General Alternatives
less sodium, fresher
Full guide →fresher heat
FAQ
Can I use bone-in, skin-on chicken?
Yes, but increase covered baking time to 25-30 minutes. Check that the thickest piece reaches 165F internally before proceeding.
What if I don't have reduced-fat cheese?
Full-fat cream cheese and sour cream work fine and yield a richer dish. Use the same quantities; the casserole may be slightly heavier.
Can I freeze this casserole?
Yes, freeze unbaked (through step 6) up to 3 months. Thaw in the fridge overnight and bake as directed, adding 5 minutes if cold.