Pre-heat grill or grill pan over medium-high heat.
While grill is pre-heating, let pork chops sit out at room temperature. Brush each side of the pork chops with olive oil then sprinkle with equal amounts of za'atar, kosher salt and pepper.
Place pork on the grill and let sit until a nice crust forms. (Note: Once the pork hits the grill, do not move for at least 6-7 minutes.)
Flip pork to the other side and continue cooking until it reaches an internal cooking temperature of 145-160 degrees. The total time will depend on the thickness and type of pork chop you use. (See notes.)
Remove pork from the pan and cover loosely with foil to keep warm. Let rest at least 3 minutes before slicing to ensure juicy pork.
Letting pork (or any meat) come to room temperature before cooking is the key to avoid excess shrinkage. If you place cold meat directly on a hot grill or pan it will immediately shrink up. Check out this helpful guide on pork cooking temperatures and cook times based on the type of cut.