In a microwave safe bowl, microwave turkey meatballs according to the package instructions subtracting one minute from the heat instructions.
Meanwhile, using a vegetable peeler (preferably a serrated peeler but traditional peels will work) peel the zucchini into noodles. You can use the skin but stop when you reach the seeds.
Add the zucchini noodles to the bowl of turkey meatballs. Add marinara sauce and toss it all together. Return to microwave for 3 minutes.
Remove from microwave and serve with grated parmesan cheese if desired.