1/2 c. chopped onion
2 tbsp. butter
2 tbsp. flour
1 1/2 c. milk
1 c. shredded sharp cheese
6 hard cooked eggs, halved the long way
1 1/2 c. potato chips, crumbled
10 to 12 slices crisp bacon, crumbled

Cook onion in butter; blend in flour. Add milk and stir until thickened. Add cheese; stir until melted. In a 10 x 6 x 1 1/2 inch baking dish, make a single layer of eggs. Cover with cheese sauce, potato chips, and bacon in that order. Bake at 350 degrees for 20 to 30 minutes.

Note: May be assembled, except for potato chips, a day (even 2) before serving.