Prepare the ingredients. The chicken breast should be cut into cubes about 1.5 cm (bite-sized). Mix the mustard with the rest of the ingredients: lime juice, oil, garlic powder, paprika, dried cilantro, dried thyme, dried oregano, chile de árbol, and black pepper.

Add the chicken to the mustard mixture and coat all the pieces well. Let it rest for at least 30 minutes, preferably an hour. Heat a large skillet where the chicken can fit in a single layer and place the chicken in it. Cover and cook over medium heat for about 7 minutes.