2 Whole heads garlic 2 ts Olive oil; plus 1 tb Olive oil (preferably -extra-virgin) 1 1/2 lb Escarole; trimmed; cut into -1-inch pieces 1 Clove (large) garlic; minced 4 sl French bread (4" x 6" each) -halved; toasted 1 Lemon; cut into 8 wedges