At this point, you can add them to your favorite marinara sauce and let it cook for an additional 10-15 minutes. You can serve them over spaghetti for a simple spaghetti and meatballs dish, or serve it over some delicious creamy cauliflower puree. You can also top them with marinara and mozzarella cheese and broil them in the oven until the cheese is melted and bubbling. Either way, you can’t go wrong!