Tzatziki Tuna Salad Pita Sandwiches are a bright and flavorful Mediterranean twist that is packed with 24 grams of protein for each half of a sandwich and 261 calories.
Combine the first 6 ingredients in a large bowl (drained tuna, tzatziki sauce, diced cucumber half, chopped parsley, and diced red onion.) Stuff each pita half with lettuce leaves, cucumber slices, and ⅙ of the tuna mixture.