pineapple chicken salad pitas

Ingredients

• 2 1/2 cups cups chopped cooked chicken breast (about 1 pound)
• 1/2 cup matchstick-cut carrots
• 1/3 cup sliced almonds, toasted
• 1/3 cup light mayonnaise
• 1/4 cup finely chopped green onions
• 1/4 cup plain, fat-free yogurt
• 1 tablespoon worcestershire sauce
• 1/2 teaspoon garlic powder
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1 - (8-ounce) can crushed pineapple in juice, drained
• 4 - (6-inch) whole wheat pitas, each cut in half
• 8 - romaine lettuce leaves