Step 1

In a bowl, mix drained tuna, mayonnaise, Dijon mustard, chopped celery, red onion, chopped dill pickles, and season with salt and pepper to taste.

Step 2

Place the tuna mixture on 2 slices of bread.

Step 3

Top each with a slice of cheddar cheese.

Step 4

Place the bread slices on a baking sheet and broil on low until the cheese is melted and bubbly. This can take about 2-3 minutes.

Step 5

Remove from the oven and slice the sandwiches in half.