4Add black beans and corn and simmer for 10 minutes or until heated through.
5Turn mixture into a 2 quart casserole dish. Spoon corn muffin mix evenly over casserole. Sprinkle with shredded cheese. Bake at 400 degrees for 15 minutes or until muffin mix is golden and filling is bubbling. Serve with sour cream and salsa on the side.