For these yummy stuffed avocados you will need:
1) Divide the avocados in half and extract with a spoon a bit of the interior.
2) With a fork, stir the extracted avocado with the prawns (the prawns must have been boiled before adding them) and the tuna.
3) Once everything is well mixed, add the cocktail souce and distribute inside the avocados.
4) Use some fresh letuce to decorate the dish. Keep the avocados in the fridge until they are going to be served.
Enjoy your stuffed avocados!