Chicken Souvlaki Gyro Style

4 skinless, boneless chicken breast halves
4 large pita bread rounds

Tzatziki Sauce
1/2 cup seeded, shredded cucumber
1 teaspoon kosher salt
1 cup plain yogurt
1/4 cup sour cream
1 tablespoon lemon juice
1/2 tablespoon rice vinegar
1 teaspoon olive oil
1 clove garlic, minced
1 tablespoon chopped fresh dill
1/2 teaspoon Greek seasoning
kosher salt to taste
freshly ground black pepper to taste

In a small bowl, mix the balsamic vinaigrette, juice from 1/2 lemon, oregano, and 1/2 teaspoon black pepper. Place chicken in a large resealable plastic bag. Pour marinade over the chicken, seal, and refrigerate for at least 1 hour

Toss the shredded cucumber with 1 teaspoon kosher salt, and allow to sit at least 5 minutes. In a medium bowl, mix the yogurt, sour cream, 1 tablespoon lemon juice, rice vinegar, and olive oil. Season with garlic, fresh dill, and Greek seasoning. Squeeze the cucumber to remove any excess water; stir into sauce. Season to taste with kosher salt and pepper. Refrigerate until ready to use.

To Freeze: Freeze in freezer safe container. Refrigerate Tzatziki sauce.

To Reheat: Remove chicken from marinade and place on prepared grill. Discard remaining marinade. Cook chicken until juices run clear, about 8 minutes on each side. Remove chicken from heat, and allow to sit about 10 minutes before slicing into thin strips. Place pita rounds on the grill, and cook for about 2 minutes, until warm, turning frequently to avoid burning. Serve with lettuce, onion, tomato, olives, feta cheese and pepperoncini if desired. Serve tzatziki sauce on side.