STIR together garlic and oil; BRUSH cut sides of tomatoes evenly with mixture; SPRINKLE on salt and pepper.
HEAT grill to medium-high (375°); GRILL tomatoes about 2 minutes per side.
SPRINKLE with chopped basil.
To make tomatoes rest easily on grill grid, first take a small slice off both ends (at stem), then slice in half. Oil and season both cut sides.
Per Serving (excluding unknown items): 45 Calories; 4g Fat (67.2% calories from fat); 1g Protein; 3g Carbohydrate; 1g Dietary Fiber; 0mg Cholesterol; 139mg Sodium. Exchanges: 0 Grain(Starch); 1/2 Vegetable; 1/2 Fat.