Preparation:
Cook spaghetti as directed. Sauté mushrooms in 1/2 stick butter with seasoning. Debone the 2 rotisserie chickens, disassemble and roughly chop meat. In a bowl, mix soups, sour cream, half and half, chicken, peas, 1/2 cup Parmesan, 2 cups Cheddar, and 1/2 stick soft butter. Mix in cooked mushrooms and noodles (drained). Put in a pan or baking dish. Mix the remaining Parmesan, Cheddar and breadcrumbs and sprinkle on top of casserole. Dot with butter. Cover with foil. Bake at 350 degrees for 35 minutes; uncover and brown.