Grilled Pizza with Pesto and Zucchini

Name: Grilled Pizza with Pesto and Zucchini
Ingredients: 2 cups (2 oz./60 g) lightly packed fresh basil; 1/4 cup (1 1/2 oz./45 g) toasted pine nuts; Grated zest and juice of 1 lemon; 1 garlic clove, minced; 1/2 cup (4 fl. oz./125 ml) extra-virgin olive oil, plus more for brushing; Kosher salt and freshly ground pepper; 1 batch Food-Processor Pizza Dough, divided into 2 balls; 1 zucchini, cut into 1/4-inch (6-mm) rounds; 2 cups (8 oz./250 g) shredded mozzarella cheese; 1 tsp. red pepper flakes