Hamburger Potato Casserole

Ingredients:

• 1 lb ground beef (or turkey)
• 4 large russet potatoes, peeled and sliced thinly
• 1 medium onion, chopped
• 2 cloves garlic, minced
• 1 cup sour cream
• 1 cup shredded cheddar cheese (plus extra for topping)
• 1 can (10.5 oz) cream of mushroom soup (or homemade if preferred)
• 1/4 cup milk (or more, for desired consistency)
• 1 tablespoon Worcestershire sauce
• 1 teaspoon dried thyme (or Italian seasoning)
• Salt and pepper, to taste
• 2 tablespoons olive oil or butter (for greasing)
• Optional: 1/2 cup chopped green onions or parsley (for garnish)

Instructions: