Lettuce alone, without dressing ...
The only improvement you can make is getting undressed.
A tire.
What did Bacon say to Tomato? "Lettuce get together"
Lettuce alone without dressing.
Lettuce alone with no dressing.
Lettuce alone, without dressing. I remembered this today from a joke book I had when I was a kid. Wasn't sure if it should be here or /r/dadjokes