This 5-ingredient oven chicken casserole is the kind of practical dinner that earns a permanent place in a busy cook’s rotation. Using frozen chicken nuggets as the shortcut protein, plus a handful of familiar refrigerator staples, you get a bubbling, saucy baked dish with plenty of comfort-food appeal and almost no prep. It has the spirit of a simple American casserole: economical, family-friendly, and designed to turn convenience ingredients into something hearty enough for a full supper.

Serve this with steamed rice, buttered egg noodles, mashed potatoes, or a pile of roasted broccoli to catch the extra sauce. A crisp green salad or simple coleslaw helps balance the richness, and if you want to stretch the meal further, warm dinner rolls or garlic toast work especially well alongside the cheesy, baked chicken.

5-Ingredient Oven Chicken

Servings: 4 to 6

Baked chicken nugget casserole finished with melted cheese in a glass baking dish
Baked chicken nugget casserole finished with melted cheese in a glass baking dish

Ingredients

1 bag (24 to 28 ounces) frozen chicken nuggets

1 cup ranch dressing
1 cup barbecue sauce
1 cup shredded mozzarella cheese
1/2 cup sour cream

Directions

1. Preheat the oven to 400°F. Lightly grease a 9-by-13-inch glass casserole dish if desired for easier cleanup.

2. In a medium bowl, stir together the ranch dressing, barbecue sauce, and sour cream until smooth and evenly combined.

3. Spread the frozen chicken nuggets in an even layer in the casserole dish. Pour the sauce mixture over the top and gently toss or turn the nuggets so they are well coated.

4. Sprinkle the mozzarella cheese evenly over the top. Bake uncovered for 25 to 30 minutes, until the nuggets are heated through, the sauce is bubbling, and the cheese is melted and lightly golden.

5. Let the casserole rest for 5 minutes before serving so the sauce thickens slightly. Spoon onto plates and serve hot.

Variations & Tips

Cheddar Swap: Use shredded cheddar or a cheddar-mozzarella blend if you want a sharper, more classic casserole flavor. Cheddar browns a bit faster, so keep an eye on the top during the last few minutes of baking.

Extra Tangy Version: Stir a spoonful of Dijon mustard into the sauce if you like a little more zip. That small addition helps cut through the richness of the ranch and sour cream without changing the easy character of the dish.

Make It Crispier: If you prefer the nuggets to keep more of their texture, bake them for about 10 minutes on a sheet pan first, then transfer them to the casserole dish, coat with sauce, top with cheese, and finish baking until bubbly.

Add a Vegetable: A layer of thawed broccoli florets or a handful of drained canned corn can be tucked in with the nuggets to make this more of a one-pan supper. Just avoid watery vegetables unless they’ve been cooked or drained first.

Serving Tip: Because the sauce is rich and creamy, this dish is best paired with plain starches like rice or noodles. If you expect leftovers, reheat them uncovered in the oven for the best texture rather than using the microwave.