Oven baked 3-ingredient chicken Chantilly is the kind of practical, old-fashioned casserole that earned its place on countless Midwestern tables because it is simple, reliable, and far more elegant than the short ingredient list suggests. The combination of chicken breasts, a creamy topping, and a savory seasoning blend bakes into a dish that feels company-worthy without requiring much effort, which helps explain why versions of it have lingered in family recipe boxes for decades.
This chicken is especially good with buttered rice, egg noodles, or mashed potatoes to catch the extra sauce. For a lighter plate, serve it with steamed green beans, roasted asparagus, or a crisp salad with a sharp vinaigrette to balance the richness. A simple fruit salad or sliced tomatoes on the side also fits the retro summer-supper spirit of the dish nicely.
Oven Baked 3-Ingredient Chicken Chantilly
Serves 6
Ingredients
6 boneless, skinless chicken breasts
Directions
1. Preheat the oven to 350°F and lightly grease a white oval casserole dish or a 9x13-inch baking dish.
2. Arrange the chicken breasts in a single layer in the prepared baking dish.
3. In a medium bowl, stir together the sour cream and cream of mushroom soup until smooth and evenly combined.
4. Spread the mixture evenly over the chicken, covering the tops well so the meat stays moist as it bakes.
5. Bake uncovered for 40 to 50 minutes, or until the chicken is cooked through and the topping is puffed, lightly browned, and bubbling around the edges.
6. Let the dish rest for 5 minutes before serving so the sauce can settle slightly.
Variations & Tips
Add seasoning: If you want a little more flavor without changing the character of the dish, add a pinch of black pepper, garlic powder, or paprika to the sauce before spreading it over the chicken.
Use smaller pieces: Chicken cutlets or halved chicken breasts cook faster and more evenly than very thick whole breasts. If you use thinner pieces, start checking for doneness around the 30-minute mark.
Try a different soup: Cream of chicken or cream of celery can stand in for the cream of mushroom soup if that is what you have on hand. Each gives the casserole a slightly different but still familiar flavor.
Keep it from getting watery: Pat the chicken dry before placing it in the baking dish, especially if it was previously frozen. Excess surface moisture can thin the sauce as it bakes.
Make it a fuller casserole: To stretch the meal, nestle the chicken over cooked rice or broad egg noodles in the baking dish before adding the topping. The sauce will soak into the starch and make the dish even more comforting.
