Turkey Spinach Meatballs

Name: Turkey Spinach Meatballs
Ingredients: 1/2 tablespoon olive oil; 1/4 small onion, chopped fine; 1 clove garlic, chopped fine; splash of wine wine (** optional); 1 1/2 pounds ground turkey, lean; 1 large egg, beaten; 1 10-oz. package frozen chopped spinach .. thawed, & squeezed in paper towels to remove excess moisture; 1/2 cup finely grated Parmesan; 1/2 cup dried breadcrumbs (** it's nice make your own from left-over homemade bread); 2 tablespoons chopped fresh flat-leaf parsley; 1 teaspoon fennel seeds; 1 teaspoon finely grated lemon zest; 1 teaspoon kosher salt