- In a medium saucepan, combine the broth and tomato sauce and heat over low heat until just 
- warmed, 4 to 5 minutes. 
- In a large saucepan, heat the olive oil over medium-high heat. Add the onion and cook, stirring, until softened, 3 to 4 minutes. Add the zucchini and garlic and continue to cook, stirring, until  those are softened too, 3 to 4 minutes. Stir in the rice and cook, stirring occasionally, until it is glossy in appearance, 2 to 3 minutes. 
- Add the wine, stir and let the liquid evaporate. 
- Stir in the salt. Add the warmed tomato broth ½ cup at a time, stirring occasionally. When the broth has just about been completely absorbed by the rice, add another ½ cup. Continue to cook and stir  and add broth in ½ cup increments until all of the broth has been absorbed and the risotto is tender, but still firm to the bite, 20 to 25 minutes. 
- Remove the pan from heat and stir in the cheese, basil and pepper to taste. Serve immediately.