This oven baked 3-ingredient chicken elegante is one of those dishes that looks and tastes far fancier than the effort it takes. My aunt served a version of this at every graduation party for 40 years, lined up in white casserole dishes on a long folding table in the church hall. The magic is that the sauce truly makes itself right in the oven—no whisking or babysitting on the stove. It’s perfect for busy weeknights, but special enough for company, and the creamy mushroom sauce turns simple chicken breasts into something everyone goes back for seconds of.
This chicken is wonderful over buttered egg noodles, mashed potatoes, or simple white rice so that all that silky mushroom sauce has something to soak into. Add a green vegetable on the side—steamed green beans, roasted broccoli, or a tossed salad with a bright vinaigrette—to balance the richness. Warm dinner rolls or crusty bread are great for mopping up the extra sauce. For a bigger gathering, I like to set the casserole dish on a trivet, keep a big serving spoon tucked right in the corner, and let everyone help themselves family-style.
Oven Baked 3-Ingredient Chicken EleganteServings: 6
Ingredients
2 1/2 to 3 pounds boneless, skinless chicken breasts (about 6 medium pieces)
2 (10.5-ounce) cans condensed cream of mushroom soup
1 cup sour cream (full-fat or light)
Optional for serving: chopped fresh parsley or black pepper to sprinkle on top
Directions
Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch white ceramic or glass casserole dish so the chicken doesn’t stick.
Pat the chicken breasts dry with paper towels. If they are very thick, slice them in half horizontally so they cook evenly and stay tender. Lay the chicken pieces in a single layer in the prepared casserole dish, snug but not overlapping too much.
In a medium bowl, stir together the condensed cream of mushroom soup and sour cream until mostly smooth. Don’t add water or milk—the mixture will seem very thick, but it will loosen and turn into a silky sauce as it bakes with the chicken juices.
Pour the soup and sour cream mixture evenly over the chicken, using a spatula or the back of a spoon to spread it so all the chicken is coated. It’s fine if some chicken edges peek through; the sauce will bubble up around them in the oven.
Cover the casserole tightly with foil. Bake in the preheated oven for 35 minutes. This covered time helps the chicken gently poach in the creamy sauce so it stays moist and the sauce “makes itself” without any extra work from you.
After 35 minutes, carefully remove the foil (watch out for steam) and return the dish to the oven. Bake uncovered for another 15–20 minutes, or until the sauce is bubbling, slightly golden around the edges, and the thickest part of the chicken reaches 165°F (74°C) when checked with an instant-read thermometer.
Once done, let the chicken rest in the hot sauce for about 5–10 minutes on the counter. During this time, the sauce will thicken slightly and cling to the chicken, giving you that creamy, elegant look you want in the serving dish.
To serve, use a large spoon to scoop out a chicken breast along with plenty of sauce. If you like, sprinkle a little chopped fresh parsley or a crack of black pepper over the top right in the casserole dish for a simple but pretty finish.
Variations & Tips
For picky eaters, you can use cream of chicken soup instead of cream of mushroom, or do one can of each for a milder mushroom flavor. If your family loves extra mushrooms, scatter 1–2 cups of sliced fresh mushrooms over the chicken before pouring on the sauce; they’ll cook down and blend right in. For a slightly tangier sauce, use half sour cream and half plain Greek yogurt. If you prefer dark meat, boneless, skinless chicken thighs work beautifully and stay very juicy; just check for doneness, as they may need a few extra minutes. To stretch the meal for a crowd, slice the cooked chicken into thick strips right in the casserole and gently toss in the sauce so every piece is well coated—this matches that tender, spoonable style you often see at graduation or church dinners. For a bit of color and flavor, you can add a teaspoon of dried parsley or onion powder to the sauce before baking without changing the simple 3-ingredient base. Food safety tips: Always wash your hands, cutting board, and knife well after handling raw chicken. Make sure the chicken reaches an internal temperature of 165°F (74°C) in the thickest part before serving. Don’t let the casserole sit out at room temperature for more than 2 hours; refrigerate leftovers in a shallow container and use within 3–4 days, reheating until steaming hot all the way through.
