Heat 2-3 tablespoons oil and the achiote and Mexican chili powder over medium heat in a Dutch oven. Cook for 2 minutes.
Add the chopped onions and cook for 2 minutes.
Next add the crushed garlic, half the Worcester sauce, half the soy sauce, cumin, cilantro and cook for about 5-8 minutes or until the onions are soft.
Add the cooked chicken meat to the vegetables.
Next, add the cooked rice. Cook for 5 minutes, stirring occasionally.
Stir in the remaining soy sauce, remaining Worcester sauce mix well.