Sweet and Sour Turkey Meatballs

Name: Sweet and Sour Turkey Meatballs
Ingredients: 1 tablespoon canola oil, divided; 1 (15.5 oz/439 g) can no-salt-added pinto beans, rinsed and well drained; 1 lb (450 g) ground turkey; 1 medium onion, peeled and grated; 2 medium carrots, scrubbed and grated; 2 large cloves garlic, crushed using a mortar and pestle or grated on a microplane; ½-inch piece fresh ginger, grated on a microplane; 2 teaspoons low-sodium soy or tamari sauce; 1 teaspoon worcestershire sauce; 1 teaspoon salt; ¼ teaspoon ground black pepper; 1 large egg, lightly beaten; 4 tablespoons breadcrumbs (or a little more as needed); 2 tablespoons canola oil; 2 medium red bell peppers, de-seeded and coarsely chopped; 1 large onion, chopped; 6 cloves garlic, crushed using a mortar and pestle or grated on a microplane; 1-inch piece fresh ginger, grated on a microplane; 6 tablespoons (90 ml) apple cider vinegar; 4 tablespoons (60 ml) low-sodium soy or tamari sauce; 1 tablespoon honey (or more to taste); 1 (20 oz/570 g) can chunk pineapple in pineapple juice; 2 tablespoons cornstarch dissolved in ½ cup (120 ml) cold water to form a slurry; 3 scallions, green and white parts, thinly sliced, for garnish (optional)