Heat olive oil in large pan over medium heat. Add the meatballs and cook on each side for about 2 to 3 minutes per side, flipping them until most of the spicy meatballs' surface is brown.
Pour homemade sauce into the meatball pan, stirring up all the brown bits from the pan to incorporate into the sauce. Bring the sauce to a simmer and let the meatballs cook until cooked through.