"Create a recipe for Meatballs & Tomato Sauce. The dish features classic meatballs made with ground beef, ground pork, egg, panko breadcrumbs, pancetta, Parmesan cheese, garlic, parsley, ground fennel, and kosher salt. The meatballs are served with a tangy tomato sauce made from tomato paste, olive oil, crushed tomatoes, basil, red pepper flakes, and garlic. The recipe should be balanced in protein and flavors, suitable for everyday meals or post-workout nutrition. The recipe is for 2 servings."