Persian Split Pea and Rice Soup with Lamb Meatballs

Name: Persian Split Pea and Rice Soup with Lamb Meatballs
Ingredients: 2 tablespoon extra-virgin olive oil; 1 yellow onion, thinly sliced; 1/2 teaspoon ground cinnamon; 1/2 teaspoon ground turmeric; 3/4 cup short-grain white rice; 3/4 cup dried green split peas, soaked overnight and drained; 2 cups finely chopped parsley leaves and tender stems; 2 cups finely chopped cilantro leaves and tender stems; 1/2 cup finely chopped mint leaves; 2 tablespoons pomegranate molasses, plus more as needed; Kosher salt; 1 small yellow onion, grated; 1/2 pound ground lamb; 1/2 teaspoon kosher salt; 1/4 teaspoon pepper; 1/4 cup canola oil; 2 tablespoons dried mint; 1 large onion, thinly sliced