For a portable and easy-to-eat veggie sandwich, try a roasted vegetable wrap. Roast your favorite vegetables like sweet potatoes, bell peppers, and onions with some olive oil, salt, and pepper. Spread some hummus or tzatziki sauce on a whole wheat wrap and layer it with the roasted veggies. Add some fresh greens like spinach or arugula for added freshness. Roll up the wrap tightly and enjoy a flavorful and nutritious meal on the go.