This oven baked 4-ingredient chicken Romanoff is the kind of church-cookbook treasure that quietly shows up at every family reunion and potluck until it becomes part of the family story. My great aunt first brought it to a church basement supper back in the early 70s, scribbled into the ladies’ spiral-bound cookbook, and it’s been passed around ever since. It’s creamy, cozy, and unfussy—just chicken, a tangy-smooth sauce, and a golden browned top you scoop out with a big spoon. It’s the kind of recipe you make on a busy weeknight or for company because you know it will turn out and everyone from toddlers to grandparents will happily dig in.
Serve this chicken Romanoff over buttered egg noodles, mashed potatoes, or simple white rice so all that velvety sauce has something to soak into. A green vegetable on the side—steamed green beans, roasted broccoli, or a tossed salad with a light vinaigrette—keeps the plate balanced. Warm dinner rolls or crusty bread are perfect for swiping up the last bits from the casserole dish. For a family-style meal, set the casserole right on the table with a big serving spoon and let everyone help themselves.
Oven Baked 4-Ingredient Chicken RomanoffServings: 6
Ingredients
2 pounds boneless, skinless chicken breasts, cut into bite-size pieces
2 cups full-fat sour cream
1 (10.5-ounce) can condensed cream of mushroom soup
1 cup shredded Swiss cheese (or mild cheddar), divided
Directions
Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch cream-colored casserole dish or similar baking dish so the chicken doesn’t stick.
Cut the chicken breasts into small, bite-size pieces, about 1-inch cubes. Pat them dry with paper towels so they brown and don’t water down the sauce.
In a medium bowl, stir together the sour cream, condensed cream of mushroom soup, and 1/2 cup of the shredded cheese until smooth and well combined. This is your creamy Romanoff-style sauce.
Spread the chicken pieces evenly in the bottom of the prepared casserole dish. Sprinkle lightly with salt and pepper if you like (optional, not counted in the four ingredients).
Pour the sour cream and soup mixture over the chicken, using a spatula or the back of a spoon to nudge the sauce into the corners and make sure all the chicken is coated. You want a nice, even layer of creamy sauce.
Sprinkle the remaining 1/2 cup shredded cheese evenly over the top. If you enjoy a little color, you can add a pinch of dried parsley or paprika on top for those pretty herb flecks (also optional).
Place the casserole dish on the center rack of the oven and bake, uncovered, for 35–45 minutes, or until the chicken is cooked through (no pink in the center and juices run clear) and the sauce is bubbling around the edges.
For a deeper golden browned top like you see in old church cookbooks, switch the oven to broil for 2–3 minutes at the end of baking. Watch very closely so the cheese gets toasty and brown in spots but does not burn.
Remove the casserole from the oven and let it rest for about 5–10 minutes before serving. This helps the sauce settle into a velvety layer and makes it easier to scoop out generous spoonfuls.
Variations & Tips
For picky eaters, you can swap the cream of mushroom soup for cream of chicken soup if your kids don’t like mushroom pieces. If someone in your family doesn’t care for Swiss, use all mild cheddar or mozzarella for a more familiar flavor. To stretch the meal for a crowd (like at a reunion), stir in 2 cups of cooked egg noodles or cooked rice right into the sauce and chicken before baking, then top with cheese as directed. For extra flavor, you can stir 1 teaspoon of dried onion flakes or a small handful of finely chopped sautéed onions into the sauce—this keeps the texture soft while adding a little something special. If you’d like more color and a few hidden veggies, fold in 1 cup of thawed, well-drained frozen peas or mixed vegetables with the chicken. For a slightly lighter version, use light sour cream and reduced-fat condensed soup, but avoid fat-free sour cream since it can curdle and turn grainy when baked. Food safety tips: Always start with fully thawed chicken; do not bake from frozen in this recipe or the outside may overcook before the inside reaches a safe temperature. Chicken should reach an internal temperature of 165°F (74°C) in the thickest pieces—if you’re unsure, use an instant-read thermometer to check. Keep the sour cream and soup mixture refrigerated until you’re ready to assemble, and don’t leave the finished casserole at room temperature for more than 2 hours. Leftovers should be cooled, covered, and refrigerated promptly, then reheated until piping hot before serving.
