"Here's a vegetable casserole that's great as a summer meal. You might want to put a cookie sheet or something under this dish as it bakes, because it sometimes bubbles over."

• 2 medium yellow squash
• 2 cups grated Romano cheese
• 1 Vidalia onions, thinly sliced
• 2 large zucchini
• 2 large tomatoes, sliced
• salt and pepper to taste
• 1/2 cup butter, divided