Grilled Veggie and Hummus Wraps

INGREDIENTS

• 4 (1/2-inch-thick) slices red onion
• 1 red bell pepper, seeded and quartered
• 1 (12-ounce) eggplant, cut into 1/2-inch-thick slices
• 2 tablespoons olive oil, divided
• 1/4 cup chopped fresh flat-leaf parsley
• 1/8 teaspoon kosher salt
• 1 (8-ounce) container plain hummus
• 4 (1.9-ounce) whole-grain flatbreads (such as Flatout Light)
• 1/2 cup crumbled feta cheese
• Avocado-Butter Lettuce Salad