Chopped Greek Chicken Salad with Pita Croutons and Tzatziki Dressing

Name: Chopped Greek Chicken Salad with Pita Croutons and Tzatziki Dressing
Prep time: 12 h
Cook time: 15 min
Total time: 12 h 15 min
Cuisine: Mediterranean
Ingredients: 1/2 seedless/English cucumber (peeled and finely diced); 1/2 teaspoon coarse (kosher salt); 1/2 cup plain Greek yogurt; 1/2 cup mayonnaise (light or regular); 1 clove garlic (finely minced (or 1/4 teaspoon garlic powder)); 1 tablespoon freshly squeezed lemon juice; 1 tablespoon red wine vinegar; 1/2 teaspoon dried parsley; Pinch of black pepper; 1 1/2 pounds chicken breasts (I like to use thin cut chicken); 2 tablespoons olive oil; 1/3 cup fresh lemon juice (from about 2 large lemons); 1/3 cup buttermilk; 4 cloves garlic (finely minced or pressed (or 1 teaspoon garlic powder)); 2 teaspoons dried oregano; 1 teaspoon coarse (kosher salt); 1/2 teaspoon black pepper (I use coarsely ground; use less if finely ground); 4 to 5 pita breads or flatbread (see note for recipes); 3 small to medium heads romaine (chopped (about 8 cups)); 1/2 to 1 seedless/English cucumber (peeled and diced); 1 medium bell pepper (red, yellow or orange, cored, seeded and diced); 1 cup chopped or sliced kalamata or black olives; 1 cup chopped cherry or roma tomatoes; 1/4 to 1/2 red onion (sliced into thin slivers); 1/2 cup or more, to taste crumbled feta cheese