Au Gratin Potato Casserole

Total Time

Prep: 20 min. Bake: 25 min.


2 servings

Updated: Jan. 24, 2023
I've been making this casserole for a few years now. It's rich, creamy and comforting.


  • 2 cups sliced peeled potatoes (1/4-inch slices)
  • 2/3 cup condensed cream of mushroom soup, undiluted
  • 1/4 cup milk
  • 1/4 cup shredded cheddar cheese
  • 1/8 teaspoon pepper
  • 2 to 4 tablespoons french-fried onions


  1. Place potatoes in a saucepan and cover with water. Bring to a boil. Reduce heat; cover and cook for 12 minutes or until potatoes are almost tender. Drain. In a bowl, combine soup and milk. Stir in cheese and pepper.
  2. In a greased shallow 1-qt. baking dish, layer half of potatoes and half of soup mixture. Repeat layer. Bake, uncovered, at 350° for 20 minutes. Sprinkle with onions. Bake 5-10 minutes longer or until bubbly and onions are golden brown.