Italian Wedding Risotto

Ingredients

• 1 pound ground pork
• 1/2 cup panko
• 2/3 cup Parmigiano-Reggiano cheese, finely grated, divided
• 1/4 cup fresh flat-leaf parsley, chopped
• 1 large egg, lightly beaten
• 4 cloves garlic, finely chopped, divided
• 2 teaspoons kosher salt
• 1 teaspoon black pepper
• 4 cups low-sodium chicken stock or broth
• 2 cups water
• 2 tablespoons extra-virgin olive oil
• 1/4 cup unsalted butter, divided
• 1 medium yellow onion, finely chopped
• 1 medium celery stalk, finely chopped
• 1 1/2 cups Arborio rice
• 3/4 cup dry white wine
• 3 cups fresh baby spinach, packed and torn
• dried parsley, to taste, for garnish