2 pounds grated zucchini

1/2 cup chopped onion

1 egg, beaten

1/4 cup oil or melted margarine

1 teaspoon salt

1/4 to 1/2 teaspoon garlic salt

pepper to taste

4 slices day old bread (break or crumble)

1/2 cup mushrooms (optional)

grated cheese for topping

Mix ingredients together; toss lightly. Put into greased casserole dish. Place grated cheese over top. Bake at 350 degrees for about 40 minutes.