In a 10-in. Ovenproof skillet, saute zucchini and green pepper in oil until tender, about 3 minutes. Combine eggs, Parmesan cheese, cream, butter, salt and pepper; pour over the vegetable mixture. Cook and stir gently for 3 minutes or until eggs are set on bottom. Top with cheese. Bake at 350 for 5-7 minutes or until eggs are set and cheese is melted.