Boil the chicken breast and shred it into bite-sized pieces.
Cut the romaine, tomato, cucumber, and red onion into manageable pieces.
Prepare the olives and feta cheese and slice them appropriately.
Cut the boiled eggs in half.
Arrange all the ingredients nicely in a bowl.
Mix olive oil, lemon juice, salt, and pepper to make the dressing.
Drizzle the dressing over the salad.