Ingredients:

1 red onion, finely chopped
Juice of 2 lemons
1 TBS olive oil
1 tomato, finely chopped
1 TBS cilantro
1 avocado, cut into small cubes
Salt and black pepper to taste
500 grams boiled shrimp (I used uncooked frozen shrimp and boiled them for 3 mn – drain and cool before using)

Preparation:

Soak red onion in olive oil, lemon juice, salt and black pepper
Cover and refrigerate for around 30 minutes

30 minutes later, combine everything together and serve cold right away!