- 1 medium yellow onion, finely chopped
- 1 pound ground beef
- 1/4 cup tomato paste
- 1/2 cup dried bread crumbs
- 1/2 cup (about 2 ounces) grated white Cheddar
- 1 egg, beaten
- kosher salt and pepper
- 1 tablespoon olive oil
- 1 26-ounce jar marinara sauce
- In a large bowl, gently combine the onion, beef, tomato paste, bread crumbs, Cheddar, egg, 1 1/2 teaspoons salt, and 1/2 teaspoon pepper. Shape into 20 meatballs.
- Heat the oil in a large saucepan over medium heat. Add the meatballs and brown on all sides, about 7 minutes total.
- Add the sauce to the pan and bring to a boil. Reduce heat and simmer 5 to 6 minutes, until the meatballs are cooked through. Divide the meatballs and sauce among individual plates.