Ingredients

3 tablespoons mayonnaise

1 tablespoon nonfat plain Greek yogurt

1 teaspoon grated lemon zest plus 1 tablespoon juice

Salt and pepper

1 can (5 ounces) solid light tuna packed in water, drained and flaked

1 stalk celery, halved lengthwise and thinly sliced

1/2 Granny Smith apple, peeled and grated

Whole-wheat bread, red onion, cucumber, and alfalfa sprouts, for serving

Preparation

Whisk together mayonnaise, yogurt, and lemon zest and juice; season with salt and pepper. Stir in tuna, celery, and apple. Serve with bread, onion, cucumber, and sprouts.