Stir together first 3 ingredients, and spoon into a lightly greased 2-quart baking dish. Sprinkle with cheese blend.
Bake at 350° for 20 minutes or until thoroughly heated. Garnish, if desired.
This is very quick and good. My whole family enjoys it. It's also very versatile. A good side dish or as a filling for enchiladas or a base for burritos.