Slather about two tablespoons of the dressing over each pita, then divide the rest of the ingredients up and top your pita with them (mixed greens, sprouts, avocado slices, cucumber slices, sardines.) If you're preparing this in advance and are toting it somewhere, like the office, securely wrap the pita with tin foil or parchment paper and set it into a container with a lid. Otherwise, fold it up and devour it.