From "Gad Zukes! It's a ZUCCHINI cookbook"
There are not many "old family recipes" using zucchini, but this one has been passed down for fifty years.
1 1/2 lbs. zucchini, sliced
1 c. dry bread crumbs
1 onion, minced
1 c. grated cheese
1/2 tsp. salt
1/8 tsp. pepper
Steam or cook zucchini in small amount of water until tender and nearly dry. Mash and mix with rest of ingredients. Spoon into greased casserole and top with additional grated cheese. Bake at 375 until golden brown. Serves 4.