Chicken Curry Pie With Sweet Potato

Name: Chicken Curry Pie With Sweet Potato
Ingredients: 700 g sweet potatoes, peeled, coarsely chopped (kumara); 2 teaspoons oil; 1 brown onion, finely chopped; 2 garlic cloves, crushed; 2 teaspoons grated fresh ginger; 1 large carrot, peeled, finely chopped; 600 g boneless skinless chicken breasts, cut into 2-3cm pieces; 1 1⁄2 tablespoons korma curry paste; 2 teaspoons all-purpose flour; 400 g diced tomatoes; 1⁄3 cup water; 1 cup frozen peas, thawed; 2 tablespoons chopped fresh coriander; 2 teaspoons fresh lime juice; 2 teaspoons brown sugar; salt and pepper