Minestrone with Turkey Sausage Meatballs

Preheat oven to 350 degrees F. Line two baking sheets with parchment paper and set aside. In a medium bowl, combine sausage, egg, 1/4 cup parsley, 1/4 cup Parmesan, and breadcrumbs. Roll into 1" meatballs and place on parchment paper. Bake until golden, about 15 minutes. In a large pot, over medium-high heat, heat olive oil. Add onion, carrots, and celery and cook 2 minutes, then add garlic and season with salt and pepper. Continue cooking until vegetables are softened, 3 to 4 minutes. Stir in beans, remaining 1/4 cup Parmesan, chicken broth, crushed tomatoes, and 2 cups water; bring to a boil. Stir in pasta and simmer until al dente, 7 minutes. Add meatballs until warmed through, then stir in spinach. Serve with Parmesan.