Step 1: Heat oven to 425 degrees F. Combine all meatball ingredients in a bowl.
Step 2: Mix until fully combined.
Step 3: Roll out 3 large meatballs and 6 small meatballs. Place on a baking sheet.
Step 4: Bake for 10 minutes, then remove the small meatballs. Bake the larger meatballs for 5 more minutes, or until the internal temperature reaches 165 degrees F.
Step 5: While the meatballs are cooking, cook the pasta according to package directions. Drain. Place the pasta back in the pot and stir the spaghetti sauce in with the pasta.
Step 6: Serve by adding pasta to each bowl and then topping with 1 large meatball and 2 small meatballs. Top with Parmesan and microgreens.