Ingredients

1 small crisp apple, such as Granny Smith, peeled, cored, and very finely chopped 

1 teaspoon freshly squeezed lemon juice 

2 (6-ounce) cans solid white tuna packed in water 

2 sticks of celery, cut into 1/4-inch pieces 

1/2 cup light mayonnaise 

1/2 teaspoon coarse salt 

Freshly ground black pepper 

1 lavash flatbread 

6 slices of cheese, such as Kraft Singles 

4 lettuce leaves, preferably green leaf 

Preparation

In a medium bowl, toss the apples with the lemon juice until coated. Add the tuna, celery, mayonnaise, salt, and pepper and stir with a fork until tuna is broken up and mixture is combined.

Lay the lavash on a large sheet of parchment paper on a work surface and cover with the cheese slices in a single layer, followed by a single layer of lettuce leaves. Evenly place the tuna salad along the bottom edge of the lavash. Using the parchment as a guide, tightly roll the sandwich beginning with a long side and wrap tightly in the parchment, taping the paper as necessary.