I tried a new recipe yesterday, that reminded me of Company Potatoes, only made in the crockpot. They were just as delicious!
Line your crockpot with foil. Layer slices of onions, mushrooms, potatoes, cheddar cheese and butter. Repeat. Fold the foil over the seal a bit then cook for 8-10 hours on low. I used 2 onions, 4 large mushrooms (I would have used more if I had them), 6 potatoes, 1/2 cup cheese and 1/2 cup butter. And that makes about 6 servings.