Chopped Greek Chicken Salad with Pita Croutons and Tzatziki Dressing

small to medium heads romaine, chopped (about 8 cups)

to 1 seedless/English cucumber, peeled and diced

medium bell pepper (red, yellow or orange), cored, seeded and diced

chopped or sliced kalamata or black olives

to 1/2 red onion, sliced into thin slivers

(or more, to taste) crumbled feta cheese

seedless/English cucumber, peeled and finely diced

coarse, kosher salt

plain Greek yogurt

mayonnaise, light or regular

garlic, finely minced (or 1/4 teaspoon garlic powder)

freshly squeezed lemon juice

red wine vinegar

dried parsley

black pepper

chicken breasts (I like to use thin cut chicken)

olive oil

fresh lemon juice (from about 2 large lemons)

buttermilk

garlic, finely minced or pressed (or 1 teaspoon garlic powder)

dried oregano

coarse, kosher salt

black pepper (I use coarsely ground; use less if finely ground)

to 5 pita breads (or flatbread like this homemade recipe)