Preheat your oven to 200 degrees.
In a large bowl, combine the garlic, salt, lemon juice, tomato puree, and Spicentice seasoning. Add around 10 spritzes of low calorie cooking spray, and mix well to create a marinade.
Coat each chicken thigh with the marinade.
Thread each chicken thigh on to two metal skewers, place on a baking tray, and spritz liberally with low calorie cooking spray.
Bake in the oven for 20 minutes, then remove, turn the kebab over, spritz again with low calorie cooking spray, and return to the oven for another 20 minutes. The chicken should be cooked through, and starting to char at the eges.
Remove the kebab from the oven, and stand upright or at an angle. Slice thinly.
Serve with your choice of accompaniments, and enjoy!