Spaghetti with Zucchini and Creamy Sauce

Bring a large pot of water and salt to a boil. When the water boils, add the whole wheat spaghetti and cook according to package instructions (approximately 14-15 minutes).

While the pasta is cooking, prepare the rest of the ingredients: peel and finely chop the onion and garlic. Roughly chop the fresh parsley and finely grate the Parmesan. Wash the zucchini and, using a peeler, cut long strips from the skin and the outer part of the pulp. Cut the central part with seeds into small cubes.

Before draining the pasta, reserve about 200 ml of the cooking water. Drain the rest of the water.