Suzanne has submitted a great reuse tip. I haven't tried it myself but am intrigued, as I always have salad left over.
"Not sure if this is a green idea but it is my favorite reuse idea. I hate throwing out salad and it doesn't seem to keep past a day or so especially if I have dressed it. So the next day I put it all in the blender adding anything else like leftover tomatoes, salt and pepper. I drink my salad! It's pretty yummy. You might need to add water."
Thanks, Suzanne! I'll try some today.