Start the queso first. Add evaporated milk, white Amercian cheese, shredded pepper jack cheese, salt and canned green chiles to a crockpot set on low. Cook for 2 hours stirring periodically. You can also do this over low medium heat on the stovetop.
For the rice, cook one diced onion just under medium heat for 10 minutes. Add garlic and cook 2 minutes more.
Add chicken stock, tomato sauce, Better than Bullion and salt. Stir and bring to a boil.
Add Minute Rice. Stir. Cover and remove from the heat.
Allow to cook with the lid on for 20 minutes. Fluff once done. The rice can be made a day in advance and gets better with time. Highly recommend doing this either the day before or in the morning.
Combine garlic powder, onion powder, cumin, ancho chili powder, salt, pepper and paprika. Set aside.
Trim and pound chicken breasts so they're even in thickness on both sides. Towel dry.
Cover on both sides with all the seasoning.
Cook in a preheated pan coated in light olive oil just under medium heat. Cook 7-8 minutes per side based on thickness until internal temperature reaches 165 degrees.
Let rest for 10 minutes before slicing and serving over a bed of the Mexican rice.
Ladle queso over the chicken and serve.