We ate after doing the self tour of the caverns. As a group, we were tired and really hungry. I was delighted to see some relatively healthy options like fruit cups, yogurt parfaits, and pre-packaged pretzels with hummus dip. At the same time, we were eating late (around 3:30pm) and most items were clearly picked over (like the salad bar- there wasn't much that looked appetizing). I ordered the veggie burger for myself and might've gasped outloud when I observed the staff pull a frozen puck out of a compartment, put it on a plate, and tossed it in the microwave! Right then I wanted to object and change my mind. Sadly, there weren't many vegetarian options, however. My husband had already tried to order nachos and was denied because they were out of cheese! So my only options at that point were a quesadilla, a picked over salad, the parfait, a pretzel or the hummus. I ended up dousing the veggie burger with mayo and pickles, making it edible and honestly, I was so hungry at that point, I might've eaten just about anything! My husband declined to eat at all. All three of the kids got the yogurt parfaits and didn't finish them because the fruit tasted/looked like it had been frozen and was inedible due to their disgust. So my husband and I scraped it all off the top, leaving them eating a partial cup of pink yogurt, which annoyed me, because it was the healthfulness of the fruit I wanted them to have after all the traveling we'd done. My brother-in-law ordered the cheeseburger and mentioned it's the worst he's ever had, and he eats a ton of fast food. My advice is to save your money, spare you pallet, and pack a picnic of your own food and eat in the car or around the the park somewhere. The views from just outside of the Visitor's Center are breath-taking.