4-Ingredient Oven Baked Chicken Breasts

Need an easy chicken dinner with almost no prep? This creamy 4-ingredient oven chicken is a simple weeknight meal made with frozen boneless skinless chicken breasts, cream of chicken soup, sour cream, and onion soup mix.

Everything comes together in one casserole dish, creating tender chicken covered in a rich, savory sauce. It’s an especially convenient frozen chicken breast recipe for busy evenings when you forgot to thaw the chicken.

Serve this oven-baked chicken casserole with mashed potatoes, rice, buttered noodles, steamed vegetables, or a crisp green salad for an easy family dinner.

Why You’ll Love This Recipe

• Only 4 main ingredients make it simple and budget-friendly.
• Minimal prep: Mix the sauce, cover the chicken, and bake.
• One-dish dinner: Less cleanup after cooking.
• Creamy and comforting: The chicken bakes in a flavorful onion sauce.
• Family-friendly: Mild, savory flavors pair easily with your favorite sides.
• Easy to customize: Add mushrooms, herbs, vegetables, or use Greek yogurt.

Ingredients

• 4 frozen boneless, skinless chicken breasts
• 1 packet dry onion soup mix, about 1 ounce
• 1 can (10.5 ounces) condensed cream of chicken soup
• 1/2 cup sour cream
• 1/4 cup water

How to Make 4-Ingredient Oven Chicken

1. Preheat the oven to 375°F (190°C). Lightly grease a 9×13-inch glass casserole dish.
2. Add the chicken. Place the frozen boneless, skinless chicken breasts in a single layer in the prepared baking dish.
3. Make the creamy sauce. In a bowl, combine the onion soup mix, cream of chicken soup, sour cream, and water. Stir until smooth.
4. Cover the chicken. Spoon the creamy onion sauce evenly over the chicken breasts.
5. Bake covered. Cover the casserole dish tightly with aluminum foil and bake for about 50 minutes.
6. Finish uncovered. Remove the foil and spoon some of the sauce over the chicken. Continue baking for another 20–30 minutes, or until the thickest part of the chicken reaches 165°F (74°C).
7. Rest and serve. Let the chicken rest for about 5 minutes. Spoon the creamy sauce over each chicken breast before serving.

Best Side Dishes for Creamy Baked Chicken

This easy chicken casserole goes especially well with:

• Creamy mashed potatoes
• White or brown rice
• Buttered egg noodles
• Roasted potatoes
• Steamed broccoli
• Green beans
• Roasted carrots
• Fresh garden salad
• Warm biscuits

Easy Variations

Creamy Mushroom Chicken: Add about 8 ounces of sliced mushrooms before baking.

Greek Yogurt Chicken: Replace the sour cream with plain Greek yogurt for a tangier sauce and additional protein.

Herb Chicken: Add dried parsley, thyme, garlic powder, or black pepper for extra flavor.

Extra Sauce: Add 2–4 tablespoons of water if you want more creamy sauce for serving over rice or mashed potatoes.

Recipe Tips

Use a meat thermometer. Chicken breasts vary considerably in size and thickness. Always check the thickest part of the chicken and make sure it reaches 165°F (74°C).

Don’t over-salt. Onion soup mix and condensed soup can already contain plenty of sodium, so taste the sauce before adding additional salt.

Let the chicken rest. A short resting period helps the juices redistribute and makes the chicken more enjoyable to eat.

Benefits of This Easy Chicken Dinner

Chicken breast is a convenient source of high-quality protein, which helps support muscle maintenance and keeps meals satisfying. Pairing the chicken with vegetables such as broccoli or green beans adds fiber, vitamins, and minerals.

For a more balanced meal, serve a moderate portion of the creamy chicken with plenty of vegetables and a whole-grain side such as brown rice.

Storage & Reheating

Store leftover chicken and sauce in an airtight container in the refrigerator for up to 3–4 days.

Reheat gently in the microwave or in a covered baking dish until heated through. Add a splash of water or broth if the sauce becomes too thick.