In a small bowl, mix the dressing ingredeints together.
Cook pasta according to instructions on the package on the stovetop (pasta should be cooked al dente, do not overcook). Drain and rinse with cold water.
Add the drained pasta and other salad ingredients to a large bowl. Pour over the dressing and mix to coat.
Place a lid or wrap the tuna salad with plastic wrap. Chill for 30 minutes (or more) before serving.
Stir just before serving and add additional dill if desired.
Notes
How do you keep this from drying out?Keeping the salad covered will help, but the pasta will continue to soak up the dressing. Make a little more dressing or simply stir in a small amount of mayo, yogurt, sour cream, or even milk will help restore its creaminess.Can I use tuna in oil?You can, but tuna packed in oil will change the overall flavor of this dish, even if it has been well drained. If it's been in the fridge for a day or two, the vegetables may have released some of their natural water and the dressing may have separated slightly. Just give it a hearty stir to bring all those flavors back together again. Why is there water on the bottom of my salad?If it's been in the fridge for a day or two, the vegetables may have released some of their natural water and the dressing may have separated slightly. Just give it a hearty stir to bring all those flavors back together again.