In a large saucepan, heat broth and keep warm. In a large nonstick skillet coated with cooking spray, saute onion in oil until tender. Add rice and lemon peel; cook and stir for 2-3 minutes.

Reduce heat; stir in wine. Cook and stir until all of the liquid is absorbed. Carefully stir in 1 cup warm broth; cook and stir until all of the liquid is absorbed. Stir in broccoli.

Add remaining broth, 1/2 cup at a time, stirring constantly. Allow liquid to absorb between additions. Cook until risotto is creamy and rice is almost tender. (Cooking time is about 20 minutes).

Remove from the heat; stir in cheese and lemon juice. Sprinkle with thyme. Serve immediately. Yield: 8 servings.