Turkey Meatballs in Marinara Sauce

Name: Turkey Meatballs in Marinara Sauce
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Italian
Ingredients: 1 large egg; ¼ cup finely chopped fresh basil (plus more for serving); Heaping ½ teaspoon salt; ¼ teaspoon freshly ground black pepper; ½ teaspoon dried oregano; 2 cloves garlic, minced; 2 tablespoons water; 3 tablespoons minced yellow onion, from 1 small onion; 1⅓ pounds 93% lean ground turkey (see note); ⅔ cup dried Italian style bread crumbs (such as Progresso); ⅓ cup freshly grated pecorino Romano cheese (plus more for serving); 2 tablespoons olive oil, for cooking; Large jar (24 oz) good quality Marinara sauce (such as Rao's)