Preparation

• Coat the inside of the slow cooker with cooking spray. Combine all of the ingredients (other than the toppings), plus 4 cups water in the slow cooker. Cover and cook on low until tender, about 8 hours.
• Meanwhile, toast the nuts in a dry, heavy frying pan over medium heat until golden brown, 3 to 4 minutes. Coarsely chop and set aside.
• Ladle the cooked groats into individual serving bowls and top with the chopped nuts, chopped mango, and a pinch of nutmeg.