This delicious salad is best when served fresh. However, you can prep the veggies and sauce ahead of time so you can assemble it faster, just store ingredients in an airtight container or cover with plastic wrap. If you are making individual bowls or meal prep mason jars, I would add the avocado and tortilla strips just before eating the next day so they don't get soggy. Be sure to layer the salad dressing/sauce on the bottom of the jar so it doesn't mix with the ingredients.