Preheat oven to 375°. In a saucepan over medium heat, cook beef until no longer pink; drain.
Remove from heat; stir in cheese until melted. Spoon into a greased 2-1/2-qt. baking dish. Bake, uncovered, 10 minutes.
Meanwhile, brush all sides of biscuits with butter; roll in cornmeal. Place on top of bubbling meat mixture.