Place broccoli florets in a steamer basket over boiling water and cook for 4 to 5 minutes until tender-crisp.
In a small bowl, whisk together the extra virgin olive oil, lemon juice, sea salt, and black pepper to create the dressing.
Place the drained tuna in a serving bowl and flake it into bite-sized pieces using a fork.
Add the steamed broccoli and the sliced avocado to the bowl with the tuna.
Drizzle the lemon-olive oil dressing over the ingredients.
Gently toss the mixture to combine, ensuring the avocado slices remain intact.
Top with red chili flakes for heat and serve immediately.