Thanksgiving Leftovers Casserole

INGREDIENTS

• 2 tablespoons butter
• 1 onion, chopped
• 2 cups of leftover vegetables (green beans and mushrooms are my favorites in this)
• 2 cups of leftover stuffing
• 2 cups leftover turkey (or any other meat)
• 1 can cream of mushroom soup (optional, I don't add it, but it's in the original recipe)
• 2 cups leftover mashed potatoes
• 2 eggs
• 1 cup shredded cheddar cheese