Turkey Meatballs

Name: Turkey Meatballs
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 lb 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); 1 (24-oz) good quality Marinara sauce (such as Rao's)