Church potluck chicken casserole layers tender chicken in a creamy sauce with a buttery cracker topping for a classic family gathering dish. This protein-rich, comforting casserole feeds a crowd with ease.
Preheat your oven to 350°F (175°C) with a rack in the center position.
Boil egg noodles in salted water until just tender, about 7 minutes, then drain and set aside to prevent overcooking.
In a large mixing bowl, combine cooked chicken breast, sour cream, cream of chicken soup, shredded cheddar cheese, frozen peas, garlic powder, onion powder, kosher salt, and black pepper until well mixed.
Fold the cooked noodles gently into the chicken mixture to avoid breaking the noodles, then transfer all into a greased 9x13-inch baking dish and smooth evenly.
Crush the Ritz crackers finely, then mix with melted unsalted butter until evenly coated. Sprinkle this mixture evenly over the casserole surface.
Bake uncovered for 30–35 minutes, or until the casserole is bubbling and the topping is golden brown. Allow to cool for 10 minutes before serving so the sauce thickens for clean slices.