AuGratin Potatoes & Ham

3 c. potatoes -peeled and sliced
1/2 med onion -coarsely chopped
3/4 c. ham -cooked, cubed
1/2 c. cheese -shredded
1/2 can cream of mushroom soup
1/4 c. milk
dash of thyme

In slow cooker, layer half each of potatoes, onion, ham and cheese - repeat layers. In small bowl, combine soup, milk and thyme. Pour over top of potatoes.

Cook on high for 1 hour - reduce to low setting and cook for 6-8 hours or until tender.