Place flounder fillets in a greased baking dish and sprinkle with salt and pepper. Place slice of tomato on each fillet and alt. Pour white wine over the fish and tomatoes and sprinkle with basil. Bake at 350ºF. for 20 minutes, add grated sharp cheese and return to oven for 5 - 10 minutes or until fish flakes with a fork. This is a low calorie, no fat way to eat fish.