Broccoli Casserole

Ingredients

• 2 pkg. frozen broccoli (with or without cheese)
• 1 can cream of mushroom soup
• 1/2 tsp. dry mustard
• 1/2 tsp. salt
• 1 can onion rings
• 1 c. grated cheese
• 1/2 c. onion, diced
• 4 eggs, boiled
• 1/2 stick margarine