3/4 pound ground chicken
1/2 pound chicken sausage, casings removed
2/3 cup fresh white bread crumbs
2 teaspoons minced garlic (2 cloves)
3 tablespoons chopped fresh parsley leaves
1/4 cup freshly grated Pecorino Romano
1/4 cup freshly grated Parmesan, plus extra for serving
3 tablespoons milk
1 extra-large egg, lightly beaten
Kosher salt and freshly ground black pepper
2 tablespoons good olive oil
1 cup minced yellow onion
1 cup diced carrots (3 carrots), cut into 1/4 inch pieces
3/4 cup diced celery (2 stalks), cut into 1/4 inch pieces
10 cups homemade chicken stock
1/2 cup dry white wine
1 cup small pasta such as tubetini or stars
1/4 cup minced fresh dill
12 ounces baby spinach, washed and trimmed