Chicken Parmesan Meatballs with Soft Polenta

Name: Chicken Parmesan Meatballs with Soft Polenta
Cook time: 40 min
Total time: 40 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1 1/2 pounds ground chicken; 1 cup whole-milk ricotta cheese; 1/2 cup freshly grated Parmesan; 1/2 cup plain breadcrumbs; 1/2 cup finely chopped fresh flat-leaf parsley; 1/2 teaspoon freshly grated nutmeg; 2 cloves garlic, grated; 1 large egg; 1/2 medium yellow onion, grated; Kosher salt and freshly ground black pepper; Extra-virgin olive oil, for the pan; 2 cloves garlic, sliced; 1 sprig fresh oregano; 1/2 medium yellow onion, diced; One 28-ounce can tomato puree; Kosher salt and freshly ground black pepper; 8 ounces sliced fresh mozzarella; Soft Polenta, recipe follows; 1/4 cup freshly grated Parmesan; Torn fresh basil leaves, for serving, optional; Kosher salt and freshly ground black pepper; 1/4 cup extra-virgin olive oil; 1 cup yellow cornmeal or polenta; 4 tablespoons unsalted butter; 1/4 cup freshly grated Parmesan