Step 1

In a mixing bowl, combine together drained tuna, sweetcorn, finely chopped celery, minced onion, mayonnaise, rice, salt and pepper. Mix well. Taste and add more seasoning, if needed.

Step 2

Thinly slice cucumber and place about 10 slices in the center of tortilla (10-inch/25-centimeters), in a row. Cover them with about a quarter of the tuna filling. Sprinkle with cheese (optional) and roll into burrito (check process photos above this recipe card).

Step 3

Wrap the ends in aluminum foil and cut in half (see note 6).

Step 4

Enjoy!