In a skillet, saute garlic in 2 tb butter for 2 minutes. Add
mushrooms; cook until heated through. Remove from the heat. Add
cracker crumbs, parsley, salt, pepper, and remaining butter; mix
well. Place tomatoes in a greased 8" square baking dish. Top with the
mushroom mixture. Bake, uncovered, at 400 F for 20 minutes or until
heated through.