Cheesy Chicken and Broccoli Casserole

Cheesy Chicken and Broccoli Casserole 2 pounds boneless, skinless chicken breasts salt and pepper 1 tablespoon butter 1 tablespoon oil 1/2 medium sweet or yellow onion, chopped 1 (10.5-ounce) can condensed cream of chicken soup undiluted 1 (10.5-ounce) can condensed broccoli cheddar soup undiluted 1/2 cup freshly grated or shedded Parmesan cheese 5 white American cheese slices, cut into thin strips 1 (12-ounce) bag frozen broccoli, thawed 1 (6-ounce) box cornmeal stuffing mix I use Stovetop Preheat oven to 375 degrees and lightly grease a 9x13-inch baking dish. Cut chicken into bite-sized pieces and season with salt and pepper. Heat oil and butter over medium high heat in a large pan. Add chicken and onion and cook just until chicken is lightly browned and onion is soft. It will finish cooking in the oven. Transfer chicken and onion to a large bowl. Add remaining ingredients and stir. Note: You'll want to season the broccoli with some salt and pepper before adding it. Transfer mixture to prepared baking dish. Bake for 30 minutes.