In a mixing bowl, combine the finely chopped onion, ground turkey, breadcrumbs, soy sauce, Worcestershire sauce, and seasonings.
½ onion, 2 lb ground turkey, 1 cup bread crumbs, 2 teaspoon soy sauce, 2 teaspoon Worcestershire sauce, 1 teaspoon poultry seasoning, ½ teaspoon black pepper, salt