Cut up the vegetables. Cut the lettuce into bite-sized pieces.
Slice the red cabbage about 5 mm thick. (You can use regular cabbage instead. I use red cabbage for color.)
Slice the lemon thinly and quarter.
Slice the onion and carrot thinly. (A vegetable slicer is handy.) If the onion is very strong, soak it in water for a while.
Drain the onion well. Toss together.
Swirl the olive oil over, and add salt and pepper. Krazy Salt is good too! Mix it all up and it's done.
Story Behind this Recipe
I recreated the salad that's sold at the deli counter in a certain department store food hall. I think that they use red onion rather than regular onions, and chicken rather than ham, but I adapted it to use ingredients that I can easily get at our neighborhood supermarket.
If the salad is lacking in tartness, add a little lemon juice or vinegar. You can use any type of ham you like, but I recommend pastrami.