Tear the salad leaves into two serving bowls. Dress with 1 tablespoon of balsamic vinegar and mix. Dice tomatoes and add to salad. Drain tuna of brine, dab with a paper towel, and add to salad. Drip lemon juice on salad and sprinkle with flaxseeds.

Place eggs in pot of boiling water, turn heat down to low and boil eggs soft (5–6 mins) or hard (7–9 mins). When done, peel eggs, halve, and add to salad.

Finally, sprinkle salad with crumbled feta cheese, salt, and pepper. Serve.