
The bold spices and cooling and creamy tahini-yogurt sauce make these vegetarian pitas a home run for lunch or dinner. The meaty, umami-rich mushrooms do enough heavy lifting so that you don't miss the meat at all.
Preheat oven to 425 degrees F. Combine oil, cumin, coriander, garlic powder, smoked paprika, chile powder and 1/2 teaspoon salt in a large bowl. Add mushrooms and onion; stir to coat well. Transfer to a large rimmed baking sheet and roast, stirring once or twice, until the vegetables are tender, about 20 minutes.
Meanwhile, combine yogurt, tahini, lemon juice and the remaining 1/2 teaspoon cumin and 1/8 teaspoon salt in a small bowl.
Spread pitas with the yogurt sauce, then top with the mushroom mixture, lettuce, tomatoes and cilantro.