Loaded Potato Meatloaf Casserole (Cheesy, Hearty, Easy)

Ingredients

• 1 1/2 pounds ground beef
• 1 onion, finely chopped
• 2 cloves garlic, minced
• 1/2 cup breadcrumbs
• 1/4 cup milk
• 1 egg
• 1 tablespoon Worcestershire sauce
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 cup ketchup
• 2 pounds potatoes, peeled and sliced
• 1/2 cup sour cream
• 2 tablespoons butter
• 1 cup shredded cheddar cheese
• 1/4 cup chopped green onions
• Salt
• pepper