Heat olive oil in a large skillet or pot and cook the mini meatballs until browned on the outside.
Pour the marinara sauce into the skillet with the meatballs. Let everything simmer gently for 5-7 minutes, or until the meatballs are cooked through and the sauce is hot and flavorful.
While the sauce simmers, cook the pasta according to package directions (usually 7-9 minutes) until al dente. Drain well. Add the cooked pasta to the sauce and meatballs. Toss gently until everything is evenly coated.
Serve hot with extra Parmesan or mozzarella cheese and chopped parsley or basil if desired.