Preheat the oven to 375 degrees.

Add the beef and onion to a skillet over medium high heat, and saute until the meat is browned and the onion has softened. Drain any excess grease.

Rinse and drain the palmini noodles well.

Reduce the heat to medium low and add in the garlic to the meat mixture. Saute for 30 seconds.

Pour the sauce and parmesan cheese into the meat mixture and stir to combine. Add salt and pepper to taste.

Mix the palmini noodles into the meat and sauce mixture.

Pour the mixture into a well greased 9x9 baking dish and top with the mozzarella cheese.

Bake for 20 minutes and garnish with parsley before serving.