Ingredients:
- 1 can tuna (drained)
- 2 tbsp mayonnaise
- 1 tsp Dijon mustard
- 2 slices of whole-grain bread
- Lettuce and tomato slices (optional)
Instructions:
Slice in half and serve.
In a bowl, mix tuna, mayonnaise, and mustard.
Spread the mixture on a slice of bread, top with lettuce and tomato, and add the second slice.