Mix flour and spices together in a bowl (lemon pepper seasoning, cayenne pepper, red chili flakes, dried oregano, garlic salt and seasoning salt).
Coat chicken well, on both sides with mixture. Set to the side.
Heat your oil to 350F degrees. Test whether its ready putting a pinch of flour in. It should sizzle.
Add in your chicken and let it fry for about 6 minutes on each side. Tip: Put a lid on the pan to seal in the juices as the chicken cooks. This also creates a barrier for the splashing.
Warm your buns in the oven while the chicken is cooking.
Remove the chicken and place on a paper towel to drain.
Dip/toss chicken in the spicy butter sauce.
Add cheese to chicken and broil for 30 seconds - 1 minute (depending on the heat of your broiler).
Build your sandwich and enjoy.