This Pioneer Woman Mexican Chicken Casserole combines tender chicken, colorful peppers, and layers of cheese in a delicious, Tex-Mex style dish. Itโs an easy, one-dish meal perfect for busy nights or gatherings. Enjoy the flavors of Mexican-inspired spices in this comforting casserole. Keywords: Mexican chicken casserole, Pioneer Woman, Tex-Mex recipes, cheesy casserole, chicken casserole.