Combine water and chicken and bring to a boil. Cook for 15 minutes.

Cook potatoes on cookie sheet at 400°F for 20 - 25 minutes.

Heat 2 tablespoons of oil in a large skillet. Add onion and garlic. Saute for a couple of minutes.

Remove chicken and shred. Add shredded chicken to sauted onions.

Add taco seasoning. Add a quarter cup of water. Cook on medium heat for about 5 min. Remove from heat and set aside.

Take potatoes out of the oven.

Heat 2 tablespoons of oil in a large skillet. Add potatoes and sprinkle salt over potatoes. Add pepper if desired. Cook till potatoes are brown on all sides.

In a large sauce pan, combine corn, potatoes and chicken. Cook on low heat for 5 minutes or until heated through.

Serve with warm tortillas and top with chedder cheese if desired.