Brought these to the summer potluck and three people followed me to my car asking what was in them.

Layer the potato rounds in overlapping rows, sprinkling some of the cheddar cheese between layers and over the top until everything is used.

Layered potatoes and cheese in a slow cooker
Layered potatoes and cheese in a slow cooker
3. Cover and cook on low for 4 to 5 hours or on high for 2 to 3 hours, until the potatoes are tender when pierced with a knife and the cheese is fully melted.

Tender cooked cheesy potatoes in the slow cooker
Tender cooked cheesy potatoes in the slow cooker