Strips of herb-seasoned, pan-seared beef, piled onto warm flatbread with sweet tomatoes, red onion, feta cheese, and the most incredible paprika-scented, yogurt-mint sauce.
To make the yogurt-mint sauce, in a medium bowl, combine the yogurt, mint, oregano, and paprika. Mix well and season to taste with salt and black pepper. Set aside.
Heat the vegetable oil in a large skillet over medium-low heat. Add the steak and cook for 2 to 3 minutes, until you reach your desired level of doneness. Add the Greek seasoning (or Italian seasoning) and cook for 1 minute, until the herbs are fragrant.
Spread some of the yogurt mixture on the flatbreads (or pocketless pitas). Top with the steak, red onion, tomatoes, and feta. Serve with extra yogurt sauce on the side.