Spinach, Sweet Potato and Chickpea Curry

Name: Spinach, Sweet Potato and Chickpea Curry
Cuisine: Asian, Indian
Ingredients: 1 Large Sweet Potato; 2 Chicken Breasts (optional); 1 tin Chickpeas; Curry Powder; 2 Stock cubes; 200g Brown Rice; 200g of Spinach; 2 Tinned Chopped Tomato; 5 Garlic cloves; knob Ginger; 2 Onions; 1 teaspoon Salt; Spices; 1 tin of Coconut Milk; tablespoon vegetable oil