Heat 2 Tablespoons of butter and 2 tablespoons oil in a pan (medium high heat).
While waiting for the butter to melt, season chicken with lemon pepper,, cajun seasoning, salt & pepper. Make sure all diced chicken pieces get seasoning on them.
Once the butter has melted in pan, add chicken and onions.
As the chicken cooks, be sure to move it around and maybe break it up a bit if you diced your chicken pieces large.
Cook for about 8 minutes on medium heat.
I like to take a piece out and test for seasoning right before putting the cheese on. Careful it's hot! You may want to add little more salt or pepper at this point.
Lower heat and place slices of cheese on chicken to melt.
You may need to put a cover on your pan to help the cheese along with melting.
Slather your soft sub rolls with lots of mayo on both sides of roll.
Scoop up chicken, onion and cheese mixture onto bun. The n serve!
Serve with fries or chips and enjoy.Suggested toppings: Lettuce and tomato Other cheese choices: monterey jack or mozzarella Other ingredients: Bacon, mushrooms. green, red and yellow peppers are all excellent additions to this sandwich