Hard Boiled Egg Casserole

1/2 c. onion, chopped

6 T. butter

6 T. flour

3 c. milk

3/4 lb. Velvetta cheese, cubed

1 dozen hard-boiled eggs

2 1/2 c. crushed potato chips

1 lb. bacon, cut up and fried until crisp

Saute onion in butter; add flour, then milk.  

Cook until thick like white sauce.  

Add cheese; stir until melted.  

Chop eggs.  

Layer the bottom of a greased 9x13" pan with six of the eggs.

Layer half of the sauce, then half of the chips & half of the bacon.

Repeat layers.

Bake at 350 degrees for 20-30 minutes.  

May be made the evening before and refrigerated overnight.