Brown hamburger, garlic, and onions. Add tomato sauce, 3 cans water, and 3 to 4 tablespoons flour; stir well. Add chili powder, salt, and pepper, and simmer 1 hour. Add creamed corn and
olives. Cook 5 to 10 minutes. In a casserole dish, layer tortillas, meat, and cheese, 2 to 3 layers, ending with cheese. Bake at 350 degrees for 15 to 20 minutes.