Heat oil in large, heavy skillet. Saute onion and garlic over medium heat until soft. Add rice and saute until opaque, about 3 minutes. Add 1 cup broth and bring to boil. Cover and simmer about 10 minutes or until liquid is absorbed. Add remaining broth and zucchini; cover and simmer 5 minutes. Add shrimp, scallops and peas. Simmer, covered, about 10 minutes, stirring once. Stir in parsley and cook about 5 minutes or until liquid is absorbed, rice is tender and seafood is opaque throughout (watch carefully at this point as rice may stick). Stir in Parmesan cheese.
