In large skillet cook cauliflowerets in boiling salted water about 5 minutes or until just tender. Pour off water and remove cauliflower. Melt butter in skillet; stir in salt, pepper, lemon juice, basil, oregano, and onion. Add zucchini and cauliflower. Cover and cook over low heat for 10-15 minutes or until zucchini is tender. Remove from heat and toss with cheese