In large skillet with cover, heat oil. Over medium heat, cook onion and garlic for 2 minutes. Add lamb and cook 4 to 5 minutes longer, stirring occasionally, until meat is no longer pink. Drain well, set aside. Add zucchini, mushrooms, tomatoes and juice, basil, pepper and salt. Cover and cook for 5 minutes until vegetables are crisp-tender. Add cooked lamb, onions, pasta and olives, if desired. Heat through and serve.
*12 ounces of ground lamb may be substituted.