Preheat oven to 350, and prepare mashed potatoes as you usually do (for recipe see my profile page), set aside

Brown meat in olive oil, breaking up well, drain

Add all ingredients except corn, potatoes, and cheese, simmer til most liquid is absorbed

Spray 3 qt glass casserole with cooking spray and add meat mixture

Cover meat mixture evenly with corn, then spread mashed potatoes over the corn

Cook about 20-30 minutes, then sprinkle with cheese

Heat until cheese is melted and let stand about 5 minutes before serving