INGREDIENTS
4 5 ounce cans
tuna in water
1/4 cup
plain, nonfat Greek yogurt
1/4 cup
light mayonnaise
1 cup
celery, diced (about 3 stalks)
1/4 cup
red onion, diced
2 tbsp
fresh parsley, chopped
1 tbsp
low-sugar sweet relish
1 tbsp
Dijon mustard
1/2 tsp
salt
black pepper,
6
slices whole-wheat sandwich bread
6
slices thin sliced mild cheddar cheese
1
medium tomato, sliced into 6 slices