In a saute pan, heat the olive oil. Season the tuna with salt and pepper. Add the tuna fillet
to the pan and sear
for 2 to 3 minutes on each side for medium-rare. Remove the tuna and flake the tuna into a mixing bowl. Add the potatoes, green bean
, tomatoes, eggs, and black olives
. Add the extra virgin olive oil
, vinegar and garlic to the bowl and toss well. Season the salad with salt and pepper. Using a sharp knife, slice the head of lettuce in half. Shred
. Place the lettuce in a mixing bowl and season with olive oil, salt and pepper. Using a small sharp knife, cut out a small pocket in each bread loaf. Fill each bread loaf with the salad. Wrap the sandwich in foil and serve.