Line slow cooker with foil, leaving enough foil to cover potatoes when finished (this will help the potatoes not to stick to the edges and to help them steam. It will also keep them from getting mushy.)
Layer half each of the bacon, onions, potatoes and cheese in the slow cooker. Season to taste and dot with 1 Tablespoon of butter.
Repeat layers of bacon, onions, potatoes and cheese. Dot with 1 Tablespoon of butter.
Overlap with remaining foil. Place lid on slow cooker and cook on low for 6-8 hours. Sprinkle with green onions and serve.
Source:
sixsistersstuff.com
Recipe formatted with the Cook'n Cookbook Software from DVO Enterprises.