15 oz (or 3 small cans) tuna in oil, drained & flaked

1 English cucumber

1 small/med red onion, sliced

2 avocados, diced

2 Tbsp extra virgin olive oil or sunflower oil

Juice of 1 medium lemon (about 2 Tbsp)

¼ cup (1/2 bunch) cilantro, chopped

1 tsp sea salt or ¾ tsp table salt

⅛ tsp black pepper