Pour about 1 tsp of oil into your hand and rub it all over one tomato, repeat with all tomatoes.
Place oil coated tomatoes onto the grill. If cooking with other foods at a different temperature (such as Saffron Chicken Kabobs), adjust the placement of tomatoes on the grill so that they receive medium heat.
After 3 minutes, carefully turn tomatoes over and cook an additional 2-3 minutes.
Tomatoes are done when the skin looks like it is wilting and beginning to split.
Be cautious when removing the tomatoes from the grill, they will be extremely tender and may fall apart of squeezed.