Place the bulgur in a bowl, and cover with water by 1/2 inch. Soak for 20 minutes, until slightly softened. Drain through a cheesecloth-lined strainer, and squeeze out excess water. Transfer to a large bowl, and toss with the garlic, lemon juice, parsley, mint, tomatoes, scallions and salt. Leave at room temperature or in the refrigerator for two to three hours, so that the bulgur can continue to absorb liquid and swell.

Add the olive oil, toss together, taste and adjust seasonings. Serve with lettuce leaves.