Mix all of the spices in a small bowl (so that they get incorporated evenly) and sprinkle them on both sides of the chicken breasts
Heat olive oil in a cast-iron skillet or frying pan to medium heat
Cook the chicken breast for 4-5 minutes per side, or until the chicken breasts reach 160 degrees (they'll continue to cook to 165 degrees as they rest)
Remove from the skillet from the heat and allow the meat to rest for 5 minutes before cutting.
For the salad
Add your chosen toppings to a bed of romaine lettuce