1. In a large skillet (or wok), saute the squash and garlic in olive oil on medium-high heat about 5-10 minutes, stirring often.
2. Add herbs and stir well.
3. Reduce heat to medium; continue cooking for an additional 10 minutes, stirring twice.
4. Add parsley, salt and pepper and stir well.
5. Cook 5 minutes more, or until squash is done.
6. Add pinch of sugar and lemon slices; stir well.
7. Serve sprinkled with grated Parmesan cheese.