Zucchini Casserole
["1 lb. ground beef", "1 onion, chopped", "4 c. sliced zucchini", "1 c. mayonnaise", "1 c. Cheddar cheese, shredded", "1 c. grated Parmesan cheese", "2 eggs", "salt and pepper", "butter", "1/2 to 1 c. bread or cracker crumbs"]
["Cook zucchini in 2 cups boiling water until tender.", "Brown beef and onion.", "Mix first 8 ingredients together.", "Pour into casserole dish.", "Dot with butter and cover with bread or cracker crumbs. Bake 1 hour at 350\u00b0."]
["ground beef", "onion", "zucchini", "mayonnaise", "Cheddar cheese", "Parmesan cheese", "eggs", "salt", "butter", "bread"]