I've seen the tables off to the side. It looks like there's punch and various desert treats..cookies, brownies.
Imo, it's definitely not worth the money. I don't think any of the desert parties are worth it except MAYBE the Star Wars Weekend one just because you have to wait so long to be near the stage and it's only shown a handful of times.
Now if you have money to just spend and want to be as close to the stage as possible without much wait, then do the frozen package. But you can save that money and buy better treats elsewhere. You're essentially paying to have a reserved spot so you don't have to wait 30min-1 hour before show time to be close to the stage, and they throw in some treats. And the view is good for the short stage show, but not for the fireworks. It's better to be a little further back so you don't have the stage blocking anything