Spray crock pot & evenly spread frozen hashbrowns at bottom

Crack 12 eggs in a large bowl

Slowly with a whisk mix eggs well

Add in milk to eggs

Sprinkle in ground mustard to egg mixture

Add plenty of salt & pepper & mix well

Cook sausage on high and drain

Add sausage on top of hashbrowns

Add in cheese and mix well

Poor egg mixture over everything

Using wooden spoon, even everything out so it's spread evenly

Cook in crock pot on low for 6-8 hours