Grilled Chicken Gyros Recipe

Name: Grilled Chicken Gyros Recipe
Cuisine: European, Mediterranean, Greek
Ingredients: 3/4 cup plain Greek yogurt; 3 Tablespoons sour cream; 2 teaspoons white wine vinegar; 1 Tablespoon freshly squeezed lemon juice; 1 Tablespoon olive oil; 1/8 teaspoon freshly ground black pepper; 1/4 teaspoon salt; 1/2 teaspoon dried dill; 2 garlic cloves (peeled and minced); 3/4 cucumber (unpeeled and seeded, cut into thin and short matchsticks (about 3/4 cup)); 2 Tablespoons extra virgin olive oil; 1/2 teaspoon white wine vinegar; 1/2 teaspoon dried oregano; 1/2 teaspoon salt; 1/4 teaspoon pepper; 1 Tablespoon lemon juice; 2 garlic cloves (minced); 1.5 to 2 pounds boneless skinless chicken breasts; 1/4 red onion (peeled and sliced thin); 1 to mato (chopped); lettuce; 4 to 5 flatbread pitas (preferably without the pockets)