Southwestern Breakfast Casserole
You can assemble this entire dish up to a week ahead. Bake the corn muffin mix ahead; store in an airtight container in the freezer for a couple of days. Assemble the casserole according to directions; cover and freeze. A day in advance, take it out of the freezer and thaw in the refrigerator (about 24 hours). Uncover and let stand 30 minutes at room temperature before cooking; bake as directed.