Baked Scalloped Potatoes

Ingredients

• 1 can condensed cream of mushroom soup , 10.5 ounce
• 1.25 cups milk , or more as needed
• 0.5 teaspoons ground black pepper
• 6 large potatoes , peeled and sliced
• 1 medium onion , diced

Instructions

1. 1

   Preheat the oven to 375 degrees F (190 degrees C). Grease a 2-quart casserole dish.

2. 2

   Whisk condensed soup, milk, and pepper together in a bowl.

3. 3

   Layer potatoes and onion in the prepared casserole dish. Pour soup mixture over top; it should almost cover potatoes and onion. If it doesn't, add more milk.

4. 4

   Cover and bake in the preheated 375 degrees F (190 degrees C) oven until potatoes are tender, about 1 hour, stirring halfway through.