Summer Tuna Salad Sandwich

WW Multigrain sandwich thins

4 thin

Water-packed tuna fish drained

2 can(s)

Uncooked onion(s)

½ small

Granny Smith apple

½ medium, diced

Uncooked bell pepper(s)

½ item(s), medium, diced

Uncooked celery

¼ cup(s), diced

Mayonnaise

½ cup(s)

Fresh lemon juice

1 tsp(s)

Avocado

½ medium, medium, diced

Table salt

1 pinch

Black pepper

1 pinch

Romaine lettuce

1 cup(s), shredded

Cos lettuce

1 cup(s), shredded

Chopped romaine lettuce

1 cup(s)

Lettuce

4 leaf/leaves, large