Preheat the oven to 350°F. Line a baking sheet with foil and spray lightly with cooking spray and set aside.
Add ground beef and all meatball ingredient into a large bowl. Gently mix by hand and roll into medium sized meatballs.
Place meatballs on the baking sheet. Bake for 20 minutes or internal temperature reached 165°F.
While the meatballs are cooking, place the pasta sauce and pumpkin puree into a large rimmed skillet. The skillet should be large enough to all all the meatballs to the sauce when they finish baking.
Heat sauce on medium low. While sauce and meatballs cook, cook the pasta according to package instructions. Drain and set aside.
Once meatballs have cooked, remove them from the oven and add them to the sauce. Stir in the heavy cream and simmer for 5 minutes.
Serve meatballs over cooked pasta and top with parmesan cheese.