In a sealed plastic bag or container with lid mix together your chicken, lemon zest, olive oil, rosemary, garlic and pepper and mix well. Set aside in refrigerator to marinate for at least 30 minutes but best overnight or before your leave for work in the morning.
Soak your wooden skewers in water for at least 30 minutes before using (to prevent burning). If you are lucky enough to have the metal kabob skewers, lucky you and you can skip this step.
Preheat your grill to a medium setting. Take one pre-soaked skewer and thread on a piece of chicken to about 2 inches from the end and then thread on a slice of lemon, then a olive, then a tomato and a piece of chicken and then start the whole process over again with the remaining chicken and kabob items. Fill the kabobs so they are full in the middle but have about 2 inches of space on the ends.
Lightly oil grill grates. Place your Mediterranean Chicken Kabobs on the grill and season with salt and pepper to taste. They do not need too much salt as the olives are salty. Grill on each side for about 6-7 minutes on each side or about 12-15 minutes or until the chicken juices are clear. Do not overcook the chicken.
Enjoy Mediterranean Chicken Kabobs hot off the grill with a nice tossed salad to stay low on carbs.
Remember- take it easy on the salt as the olives are naturally salty.