Pasta salad is an ideal dish to eat during the warm monthsit needs little cooking, can be made ahead, and is great served cold or at room temperature. It is also very flexible, allowing you to add protein, vegetables, herbs, and different dressings. This flavorful pasta salad features white tuna, chopped red onion, red bell pepper, garlic, and sliced grape tomatoes. The fresh dill and lemon juice add a bit of brightness to the creamy dressing, making this pasta salad perfect for an everyday lunch, or as a side dish at your next cookout.