Million Dollar Chicken Casserole
This Million Dollar Chicken Casserole is a creamy, cheesy, and utterly delicious dish that feels fancy but is incredibly easy to make. Perfect for busy weeknights, potlucks, or anytime you need a comforting meal that tastes like a million bucks.
Equipment
- Oven
- 9x13-inch baking dish
- Cooking spray
- Medium bowl
- Spoon or spatula
- Aluminum Foil
Ingredients
- 4 boneless, skinless chicken breasts patted dry
- 1 cup mayonnaise
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1/2 cup crispy fried onions
- 1/2 cup breadcrumbs Panko works wonderfully too for extra crisp
- 1 tsp garlic powder
- 1 tsp onion powder
- 1/2 tsp salt
- 1/4 tsp black pepper
Instructions
- Step 1: Preheat your oven to 375°F (190°C). Spray a 9x13 inch baking dish with cooking spray.
- Step 2: Lay your boneless, skinless chicken breasts evenly in the prepared baking dish. Sprinkle generously with the garlic powder, onion powder, salt, and black pepper, ensuring they are nicely coated.
- Step 3: In a medium-sized bowl, combine the mayonnaise, shredded cheddar cheese, shredded mozzarella cheese, crispy fried onions, and breadcrumbs. Mix everything together thoroughly until wonderfully combined.
- Step 4: Take the topping mixture and evenly spread it right over your seasoned chicken breasts in the baking dish, ensuring every bit of chicken is covered.
- Step 5: Cover your baking dish snugly with aluminum foil. Pop it into your preheated oven and bake for 30 minutes. After 30 minutes, remove the foil and continue to bake for an additional 10-15 minutes, or until the chicken is cooked through (internal temperature of 165°F or 74°C) and the topping is beautifully golden brown and bubbly.
- Step 6: Let the casserole rest for a few minutes (5-10 minutes is ideal) after it comes out of the oven. Then, serve it hot.
Notes
Substitutions & Additions: If short on time, use cooked shredded rotisserie chicken (reduce covered baking to 15-20 minutes). Boneless, skinless chicken thighs can also be used. Swap cheddar and mozzarella for Colby Jack, Monterey Jack, or Parmesan. For a lighter creaminess, replace half the mayonnaise with Greek yogurt or sour cream. Crispy topping alternatives include crushed buttery crackers, cornflakes, or panko breadcrumbs. Add a veggie boost by stirring in frozen peas, steamed broccoli florets, or sautéed mushrooms into the topping. For a heartier meal, add cooked pasta or rice to the bottom of the dish before adding chicken and topping. Enhance flavor with smoked paprika, dried herbs like thyme or oregano, or bacon bits.
Tips for Success: Ensure chicken breasts aren't overcrowded for even cooking. Pat chicken dry for better seasoning adhesion. If the topping browns too quickly after removing foil, loosely tent with foil again. Letting the casserole rest for 5-10 minutes after baking is crucial for juicy chicken. You can assemble the entire casserole (steps 1-4) a day in advance, cover tightly, and refrigerate. If baking from cold, add about 15-20 minutes to the covered baking time.
How to Store: Once completely cooled, transfer leftovers to an airtight container and refrigerate for 3-4 days. This casserole freezes remarkably well; cool completely, then freeze individual portions or the entire dish (if freezer-safe). Cover tightly with plastic wrap and aluminum foil; it will last for up to 2-3 months. Thaw overnight in the refrigerator before reheating. Reheat individual portions in the microwave, or larger amounts in a preheated oven at 300-325°F (150-160°C) until bubbly and heated through (cover loosely with foil if needed).