How to Make It
Heat the oil in a large pot over medium heat. Add the carrots, onion, bell pepper, and ¼ teaspoon each salt and black pepper. Cook, stirring occasionally, until the vegetables are tender, 10 to 15 minutes. Add the tomatoes (with their juices) and cook, stirring frequently, until thickened, 12 to 15 minutes.
Meanwhile, heat broiler. Gently mix together the turkey, herbed cheese, Parmesan, eggs, and ¼ teaspoon each salt and pepper with your hands in a large bowl until just combined (do not overmix). Form the mixture into 12 ¼-cup meatballs and place on a foil-lined baking sheet. Broil, turning once, until golden brown, 8 to 10 minutes. Add to the sauce and simmer until cooked through, 5 to 7 minutes.
Cook the pasta according to the package directions. Serve topped with the sauce and meatballs. Sprinkle with additional Parmesan.