This is a wonderful flavorful easy side dish to serve to guests for a dinner party. You can use any amount of garlic desired, since my family is garlic-lovers I have even gone so far as to use a whole bulb (about 10-12 cloves). Make certain to use only firm plum tomatoes only for this, regular tomatoes will not work and will become watery. If you find that your tomatoes are very juicy, I would suggest to remove just a small amount of the pulp and seeds from the inside with a small spoon from the tomatoes before roasting, although it is really not necessary.