1 tablespoon olive oil

1 sweet onion, minced

2 garlic cloves, minced

¼ cup grated Parmesan cheese, plus more for garnish

½ cup chopped fresh parsley, plus more for garnish

½ teaspoon dried oregano

1 large egg

1 pound ground beef

¾ cup panko bread crumbs

Salt and freshly ground black pepper

2½ cups store-bought marinara sauce

POLENTA

1 cup whole milk

1 cup polenta

3 tablespoons unsalted butter

Salt and freshly ground black pepper