Created by Felix4067 on January 6, 2013
Step 1: Preheat oven to 350F; grease a large casserole dish.
Step 2: Combine potatoes, onion and melted butter; press onto bottom and up sides of casserole to form a crust.
Step 3: Lay Pepper Jack cheese on top of potatoes; spread mushrooms over cheese; spread green pepper over mushrooms.
Step 4: Spread half of sausage over green pepper; spread cheddar cheese next, then finish with remaining sausage.
Step 5: In a bowl, beat together remaining ingredients; pour over casserole and smooth to edges.
Step 6: Bake, uncovered, at 350F for an hour, or until completely done and starting to brown.