Heat water or broth in small saucepan (about 4-5 cups). Heat skillet over medium heat. Add in butter/oil and onions. Let cook for a few minutes, then stir in garlic. Cook another minute or two, then add zucchini and pasta.

Stir in about 1 1/2 c simmering water or broth and stir. Allow mixture to cook, stirring occasionally. When most of the liquid has been absorbed, stir in another cup of water. Taste for seasoning once or twice.

When the pasta is completely cooked, you should have a creamy sauce and very soft vegetables. Stir in another tablespoon of butter and grated cheese, then about 1/4 cup fresh basil, sliced thinly.

Serve hot.