Easy and Fast Greek Gyros

For gyro filling:

Heat olive oil in a skillet and add beef, worcestershire sauce, a dash of lemon pepper, paprika, 1/2 teaspoon of garlic powder, black pepper, and heat the beef. Let it sit on low heat while tzatziki sauce is prepared.

For Tzatziki sauce:
Finely dice half of the cucumber and combine with yogurt, 1/4 of the red onion finely diced, vinegar, and all remaining seasonings.

Spray your flatbread with cooking spray and put it under the broiler until it is soft and warmed through. Fill it with a generous amount of roast beef, followed by lots of tzatziki sauce, feta cheese, tomato, cucumber, and black olives.