Brown sausage and onion; drain and cool. ... refrigerate overnight. Bake uncovered at 350 degrees for 45 minutes. Let stand 3-5 minutes before cutting.
Preheat oven to 325 degrees. ... skillet, brown the sausage over medium heat. Drain off ... a greased 2-quart casserole dish. In a large bowl ... 5 minutes before serving.