1/3 cup extra-virgin olive oil plus additional for brushing zucchini
1/4 teaspoon black pepper
3 tablespoons chopped fresh flat-leaf parsley
4 zucchini (1 3/4 to 2 lb total), halved lengthwise
12 oz purslane, thick stems removed (4 cups)
10 oz pear or cherry tomatoes, halved lengthwise
Directions
Prepare grill for cooking. If using a charcoal grill, open vents on bottom of grill.
Whisk together zest, lemon juice, shallot, mustard, and salt in a small bowl. Add oil in a slow stream, whisking until dressing is emulsified. Whisk in pepper and parsley.
Lightly brush zucchini all over with oil. When fire is hot (you can hold your hand 5 inches above rack for 1 to 2 seconds), grill zucchini, cut sides down first, on lightly oiled grill rack, uncovered, turning once, until zucchini are just tender, 8 to 12 minutes total. Transfer to a cutting board and cool slightly, then cut diagonally into 1/2-inch-thick slices.
Toss zucchini with purslane, tomatoes, and dressing in a large bowl. Serve immediately.
