Store leftovers in an airtight container in the fridge for up to 4-5 days. To keep the pasta salad from sticking together after cooking, toss it with a tablespoon of olive oil immediately after draining. If the dressing turns out too thick, thin it with a splash of water or an extra teaspoon of lemon juice for a smoother consistency. If the salad tastes bland, increase seasoning and add more fresh herbs like basil or parsley for a flavor boost.