1 pkg. hot sausage (Swift's Lean)
3 or 4 med. size zucchini, sliced (salt)
1 jar (sm.) Prego spaghetti sauce
16 oz. Mozzarella cheese
Chopped onion (optional)

Brown sausage; drain. Slice zucchini and simmer until tender. Drain.

In baking dish layer the above ingredients starting with spaghetti sauce, zucchini, sausage, then cheese until all ingredients are used. Onions chopped or sliced may be added on top of cheese. Bake at 375 until cheese is bubbly.