Oven baked 3-ingredient chicken Romanoff is the kind of practical casserole that earned a permanent place in Midwestern home kitchens: simple, comforting, and reliable for feeding a group without much fuss. The combination of chicken, sour cream, and dry onion soup mix creates a rich, savory sauce as it bakes, with a beautifully browned top and tender meat underneath. It is easy to see why a recipe like this would become a longtime favorite for bridge clubs, potlucks, and family suppers.
Serve this with buttered egg noodles, fluffy rice, or mashed potatoes to catch every bit of the creamy sauce. For balance, add a crisp green salad, steamed green beans, or simple roasted broccoli. If you are setting it out for company, a fruit plate or chilled sliced tomatoes on the side keeps the meal feeling fresh and very much in the spirit of a warm-weather luncheon.
Oven Baked 3-Ingredient Chicken Romanoff
Servings: 6
Ingredients
2 pounds boneless, skinless chicken breasts or chicken thighs, cut into large pieces
2 cups sour cream
1 packet dry onion soup mix
Directions
1. Preheat the oven to 350°F and lightly grease a white oval casserole dish or similar baking dish.
2. In a large bowl, stir the sour cream and dry onion soup mix together until fully combined.
3. Add the chicken pieces to the bowl and turn them well so they are completely coated in the sour cream mixture.
4. Spread the coated chicken and all of the sauce evenly in the prepared casserole dish.
5. Bake uncovered for 40 to 50 minutes, or until the chicken is cooked through and the top is bubbling and deeply golden in spots.
6. Let the casserole rest for 5 to 10 minutes before serving so the sauce settles slightly, then spoon onto plates and serve hot.
Variations & Tips
Use thighs for extra richness: Boneless skinless chicken thighs stay especially juicy and bring a little more flavor to this very simple recipe. They are an excellent choice if you want a more forgiving bake time.
Add a crisp topping: If you do not mind stepping beyond the strict three-ingredient version, sprinkle a handful of buttered breadcrumbs or crushed buttery crackers over the top for the last 10 minutes of baking. That extra crunch plays well with the creamy sauce.
Do not overbake: Because sour cream can tighten and separate if baked too long, start checking the chicken at the earlier end of the time range. The dish is ready when the chicken is cooked through and the sauce is hot and bubbling.
Make it ahead: You can assemble the casserole several hours in advance and refrigerate it, covered, until baking time. Let it sit at room temperature for about 20 minutes before it goes into the oven so it bakes more evenly.