Slow Cooker Scalloped Potatoes

2 pounds Yukon gold potatoes, peeled and sliced thin

1 can cream of mushroom soup

1 cup sour cream

1 tablespoon Worcestershire sauce 

2 cups shredded cheddar cheese

Spray slow cooker insert with cooking spray. Mix sliced potatoes, soup, sour cream, and Worcestershire sauce in a mixing bowl. Spread half in the slow cooker. Sprinkle with half the cheese. Spread the remaining potatoes over. Sprinkle with the remaining cheese. Cover and cook on low 6 to 8 hours. 

Optional: make a main dish by mixing in 1 pound diced ham with the potatoes.