Yield: 6 servings
2 cans (6 oz.) tuna in water, drained
1/2 cup chopped celery
1/2 cup chopped apple or drained sliced water chestnuts
1 Tbsp. chopped walnuts
1 Tbsp. chopped scallion
4 Tbsp. avocado, smashed
1/4 tsp. dry mustard
Mix tuna with chopped celery, apple, walnuts, scallion, avocado, and mustard in a bowl.
Serve on lettuce and top with tomato wedges or on whole wheat bread with the lettuce and tomato. Sprinkle with Celtic sea salt and pepper to taste.