CHEESE SAUCE:

2 tbsp. butter
1/2 tsp. dry mustard
2 1/2 tbsp. flour
2 c. milk
1/2 tsp. salt
1/8 tsp. ground pepper
1 c. shredded American cheese
1 c. cubed ham
1/4 c. chopped green onion
3 tbsp. melted butter
1 dozen eggs, beaten
1 (4 oz.) can sliced mushrooms, drained

TOPPING:

1/4 c. melted butter
1/2 can bread crumbs

To make cheese sauce, melt butter, blend in flour and cook for 1 minute. Gradually stir in milk; cook until thick. Add salt, pepper and cheese; stir until cheese melts. Set aside.

Saute ham and green onion in 3 tablespoons butter until onion is tender. Add eggs and cook over medium heat until eggs are set; stir in mushrooms and cheese sauce. Spoon eggs into greased 13"x9"x2" baking pan. Combine topping ingredients; spread evenly over egg mixture. Cover, chill overnight. Uncover; bake at 350 degrees for 30 minutes. Serves 10 to 12.