I make a very good pasta salad using small round cheese ravioli's or tortellini. Add chopped celery and sun dried tomatoes, capers and kalamata olives, fresh basil. You can use whatever olives you want but I like the Greek olives.

I soak my sun dried tomatoes in olive oil and garlic for a few days before using them in a salad or sandwich. This recipe doesn’t use mayo though. I use extra virgin olive oil and lemon juice with salt and pepper. You can substitute any vinegar you like for the lemon juice. You are making vinaigrette, so other options to add would be some orange marmalade or Dijon mustard or both. Sometimes I put a little chili oil and chili flakes to spice it up if I’m not using the marmalade and Dijon. You can also add a little soy to the vinaigrette. However you like your vinaigrette will do.

I haven't added anything else other than scallions but I see no reason why you couldn't add some fresh broccoli, cauliflower, peas, etc.