1Grease a 13*9*2 baking dish. Heat oven to 350*
In a large skillet,heat the olive oil over med, heat.Add the ground beef,celery and cook stirring till beef is browned and vegetables are tender. Add garlic and peppers, cook, for about 1min. Stir in tomatoes,chili powder,salt,pepper,and cumin.
2In the prepared bakind dish, arrange half of the sliced potatoes,then top with half of the corn and green pepper and ground beef mixture and half of the cheese.Repeat the layers,ending with the remaining cheese. Cover tightly with foil and bake for about 1 hr and 30mins.