Finely slice the zucchini. Chop the onion. Mince the garlic. Wash the mushrooms and dice if you like the texture or mince if you just want the flavor. Slice the basil leaves into thin strips like confetti.
In a pan, heat the olive oil over medium heat, sauté the onion, garlic and mushrooms until slightly browned. Add the basil and stir in about 5 seconds before stirring in the tomato sauce.
Add the sliced zucchini and water. Cover and cook until desired tenderness is reached. Add salt and pepper to taste.
Note: you can add chicken pieces instead of zucchini for a great flavor.
There are 106 calories in 1 serving of Zucchini with Mushroom Tomato Sauce.