1. In a heavy saucepan, heat the oil and add diced onions.
2. Sauté for five minutes and add zucchini balls.
3. Let cook for about 10 minutes, moving the pan constantly to make sure that all sides of the balls are evenly cooked.
4. Meanwhile, combine oil and minced garlic in a small bowl.
5. When the balls are just starting to get soft, add the oil-garlic mixture and cook for four to five more minutes, sprinkling with kosher salt and pepper.
6. Mix in parsley right before serving.