Prepare the Ingredients
Drain the tuna and place it in a mixing bowl.
Dice the avocado, cucumber, and tomato. Finely chop the red onion.
Mix the Salad
Add the avocado, cucumber, tomato, and red onion to the tuna.
Drizzle with olive oil and lemon or lime juice.
Gently toss to combine, being careful not to mash the avocado too much.
Season and Garnish
Add salt and pepper to taste.
Garnish with chopped fresh herbs if desired.
Serve
Serve immediately on its own, over a bed of greens, or with whole-grain toast.
Serving and Storage Tips
