My favorite is Rotini pasta (corkscrew, I like the garden variety), cubed grilled chicken, sliced water chestnuts, raw cauliflower pieces, sliced olives of your choice, sliced carrots, or any raw veggies you like, and parmesan cheese, with either homemade or store bought Italian dressing.
Boil and drain your pasta, heat up italian dressing with the cooked chicken, and olives (brings out the flavor IMO), mix all ingredients together, then let sit in fridge for at least three hours. Great either cold or hot. I like to go to the local farmers market and pick up fresh veggies so the ingredients alway change.