1/2 cup dry bread crumbs
1 cup shredded sharp cheddar cheese
2 cups cooked ham, cubed
10 oz. frozen broccoli, chopped and steamed until just tender and drained
2 1/2 cups milk
1/4 tsp. pepper
1/2 tsp. dry mustard
1 tsp. salt
1/4 cup finely chopped green onion
1/4 cup all-purpose flour
3 tbsp. butter or margarine
2 cups elbow macaroni