Ham Casserole

Directions

1. 1
   Preheat oven to 400 degrees F.
2. 2
   Cook onion in butter.
3. 3
   Blend in flour, salt, and pepper.
4. 4
   Add milk slowly, stirring continuously, cook until thick.
5. 5
   Remove from heat.
6. 6
   Add cheese and stir until it melts and is well blended.
7. 7
   Add ham and potatoes and mix together.
8. 8
   Pour into a casserole dish, sprinkle with crumbs.
9. 9
   Bake at 400 degrees F for 30 minutes.