Turkey Florentine Meatballs/loaf

I have made this recipe in meatloaf form and mini meatball form for parties. Both are great. The meatballs are also really good with spaghetti.

1 box frozen spinach, defrosted in the microwave
1 1/3 pound (1 package) ground turkey breast
1 medium onion, finely chopped
3 cloves garlic, chopped
1 large egg
1/4 cups milk
3/4 cup bread crumbs, 3 handfuls
1/2 cup grated Parmigiano-Reggiano, 2 palm fulls
Coarse salt and black pepper
Preheat oven to 400 degrees F.

Wring defrosted spinach dry in a clean kitchen towel. Place turkey in a bowl. Add the spinach, onion, garlic, 1 large egg,1/4 cup milk, bread crumbs, grated Parmesan, salt and pepper. Mix well. Form into 12 large balls, tons of mini balls or meatloaf. Arrange on a nonstick cookie sheet and roast 20 minutes (meatloaf will take longer), or until cooked through. I add marinara sauce for dipping.