Seasoned beef, warm pita, cool tzatziki — a gyro for lunch hits different. Mediterranean street food that delivers protein and bold flavor in every bite.
Slice the beef sirloin into thin strips, trimming any excess fat for even searing.
Combine olive oil, minced garlic, lemon juice, oregano, cumin, salt, and pepper in a medium bowl. Add beef strips and marinate for at least 30 minutes, up to 2 hours in the refrigerator.
Prepare the tzatziki: In a small bowl, mix Greek yogurt, finely grated cucumber (squeeze out excess moisture), 1 clove minced garlic, lemon juice, dill, and a pinch of salt. Let chill so flavors meld.
Heat a large skillet over medium-high heat. Once hot, add the beef (in batches if needed to avoid crowding) and sauté for 4–5 minutes until browned but still juicy inside.
Warm the pita bread in a dry skillet or oven for 1–2 minutes per side to make them pliable.
Assemble gyros: Top each pita with romaine lettuce, sliced tomatoes, onions, a generous amount of cooked beef, and a large spoonful of tzatziki sauce.
Serve immediately while the beef is warm, ensuring a contrast between crisp greens, cool tzatziki, and hot, savory beef.