In a small bowl, mix olive oil, dried oregano, garlic powder, black pepper, and salt to create a seasoning blend.
Brush the pita breads lightly with the seasoning blend on both sides.
Warm the pita breads in a skillet over medium heat for about 1-2 minutes per side until pliable and slightly toasted. Remove and set aside.
In the same skillet, warm the cooked turkey breast slices for 2-3 minutes until heated through.
Warm the turkey bacon slices for 2 minutes until crispy.
To assemble each Club Sandwich Gyro, spread 2 tablespoons of tzatziki sauce evenly over the inside of each warmed pita bread.
Layer 2 slices of warmed turkey breast on top of the sauce.
Add 2 slices of crispy turkey bacon over the turkey breast.
Top with shredded lettuce, tomato slices, red onion slices, and cucumber slices.
Sprinkle 2 tablespoons of shredded cheddar cheese over the vegetables.
Fold the pita bread over the fillings to form a gyro wrap.
Serve immediately while warm.