Dip container of frozen mix into hot water just to loosen. In 2-quart saucepan, heat frozen mix, chili powder and water to boiling. Reduce heat; cover and simmer, stirring frequently, until mix is partially thawed, about 15 minutes. Stir in corn and olives; heat to boiling. Reduce heat; cover and simmer 5 minutes.

Heat oven to 400'. While meat mixture is simmering, min remaining ingredients. Pour hot meat mixture into ungreased 2-quart casserole. Drop batter by teaspoonfuls about 1/2 inch apart onto meat mixture. (The batter will bake together to form crust.) Bake uncovered 20 minutes.