Arroz con Pollo Burritos Rice and Chicken Burritos

Name: Arroz con Pollo Burritos (Rice and Chicken Burritos)
Ingredients: 8 whole wheat tortillas, 10 inch; ¾ lb (0.4 kg) extra lean ground chicken; 1 cup (250 ml) onion(s), diced; ½ cup (125 ml) short grain brown rice; 1 tbsp (15 ml) chili powder; 1 tsp (5 ml) cumin, seeds; 1 tsp (5 ml) oregano, dried; ½ cup (125 ml) seedless raisins; ¼ tsp (1.25 ml) cocoa powder; 1 cup (250 ml) water; 2 tomatoes, fresh, diced; 1 tbsp (15 ml) chipotle peppers, in adobo sauce, minced; 2 tbsp (30 ml) tomato paste; 1 green pepper, minced; 2 tbsp (30 ml) lime juice, fresh; 1 avocado, diced; 1 cup (250 ml) cheddar cheese, grated