strip into 1" pieces. Combine garlic with 1 tb. oil; sdtir into beef and reserve. Saute onion in remaining oil in a large saucepan for 3 minutes. Sprinkle with basil and pepper; cook and stir 1 minute. Add tomatoes, beef broth and zucchini. Bring to a boil; cover reduce heat and simmer 15 minutes. Meanwhile heat large nonstick skillet over medium high heat. Cook and stir the beef 1 to 2 minutes; add to sauce. Stir 2 ts. cornstarch dissolved in 2 tb. water into stew and cook until slightly thickened, about 2 minutes. Sprinkle with grated cheese, if desired. Serving suggestion: Toasted garlic bread