Step 1

In a bowl, combine the lemon juice, minced garlic, dried oregano, salt, and black pepper. Add the chicken breasts to the marinade, ensuring they are well coated. Let them marinate for at least 10 minutes.

Step 2

Preheat a grill or grill pan over medium-high heat. Grill the marinated chicken breasts for about 6-8 minutes per side, or until they reach an internal temperature of 165°F (75°C). Remove from heat and let them rest for a few minutes before slicing.

Step 3

Warm the pita breads in a toaster or on a stovetop griddle until they are pliable and slightly toasted.

Step 4

Spread a generous amount of tzatziki sauce on each pita bread.

Step 5

Slice the grilled chicken breasts into thin strips. Divide the chicken evenly among the pitas.

Step 6

Top with shredded lettuce and any optional toppings of your choice.

Step 7

Fold the pitas in half and serve immediately.