The ingredients I used were already in my fridge, but you can easily add peppers or any of your favourite salad vegetables. I like to use penne pasta, though any shape works well. Farfalle (bow ties) looks particularly nice if you’re making it for guests at a barbecue. Add mayonnaise to taste, along with more or less tuna depending on your preference, it’s also such an easy recipe to adjust to suit your tastes.