In a large bowl, COMBINE chicken cubes with next four ingredients; SET aside.
In a small bowl, COMBINE mayonnaise, garlic, yogurt (or sour cream) and oregano (or dill weed).
ADD mayo mix to chicken mix; TOSS until lightly coated; COVER and CHILL.
Serve over torn lettuce leaves or in whole-wheat pita.
Substitutions--May substitute sour cream for plain yogurt; dill weed for oregano; greek olives for ripe olives.
Per Serving (excluding unknown items): 373 Calories; 32g Fat (73.6% calories from fat); 20g Protein; 5g Carbohydrate; 1g Dietary Fiber; 73mg Cholesterol; 514mg Sodium. Exchanges: 0 Grain(Starch); 2 1/2 Lean Meat; 1/2 Vegetable; 0 Fruit; 0 Non-Fat Milk; 3 Fat; 0 Other Carbohydrates.