I don't do lettuce; spinach mostly here, but I do walnuts, dried cranberries, shredded cheese, carrots, celery, hardboiled eggs, crumbled bacon, etc. Pretty much anything I can think of to throw in
Our salads are usually lettuce, carrots, ham, cheese, bacon/bacon bits, sliced almonds, sunflower seeds, croutons, Ranch and French dressings. Now and then there might be chicken, too.
I knew I forgot something....pickles. (Sometimes cucumbers in the summer.)