Heat olive oil in a large skillet over medium heat.
Add zucchini noodles and sauté for 2-3 minutes until slightly tender.
Stir in the pesto and toss until the noodles are evenly coated.
Add the cooked chicken slices and cherry tomatoes, cooking for another 2 minutes until heated through.
Season with salt and pepper to taste.
Serve immediately, garnished with grated Parmesan cheese.