Slice tomatoes (about 4-5 medium). Slice 2-3 medium onions. Grease casserole. Layer green tomatoes, onions, a little seasoned oil, bread crumbs. Second layer the same until used up by ending with tomatoes. Pour oil on top. Top with bread crumbs and some Parmesan cheese. Seasoned oil is just oil mixed with salt, pepper, garlic salt and whatever herbs you like. Bake in 350 degree oven for about 30 minutes.