Tomato Tuna Salad

1. 1

   Cut the tomato into 1 cm wide slices crosswise, and chill in the refrigerator.

2. 2

   Chop the onion and parsley finely.

3. 3

   Drain the oil from the tuna and mix with half the onion and the mayonnaise, and chill in the refrigerator.

4. 4

   Mix the mustard, vinegar, vegetable oil, salt and pepper and the remaining onion together, and chill until you're ready to serve.

5. 5

   Sandwich the tuna mixture from Step 2 between the tomato slices, add the parsley to the dressing from Step 3 and mix, and pour plenty over the tomato-tuna.

* Per serving · 4 servings · Values may vary.