Smoked Chicken Greek Salad Stuffed Pita

300 g old fashioned shaved smoked chicken breast, cut into strips

2 red tomatoes, cut into half-rounds

1 cucumber, cut into half-rounds

¼ cup (60 ml) sliced black olives

¾ cup (180 ml) feta cheese, cubed

2 tbsp. (30 ml) red wine vinegar

2 tbsp. (30 ml) olive oil

½ tsp. dry oregano

1 handful basil leaves

2 cups (500 ml) iceberg lettuce, shredded

Salt and pepper

4 whole wheat pita breads, very fresh