Easy Scalloped Potatoes

10 large potatoes, sliced thinly
2 large onions, chopped
2 cans condensed Cheddar cheese soup
1 cup milk

In a small bowl, combine soup with milk.

In removable liner, layer one half the potatoes and one half the chopped onions; spread one half the soup-milk mixture. Repeat layering using remaining ingredients. Place liner in base. Cover and cook on LOW for 6-8 hours, or on HIGH for 3-4 hours.