Honestly if you take the five minute drive either up Lankershim to NoHo Arts District or west along Ventura Boulevard into Studio City, you'll find so much better food than Universal has to offer.
NoHo has a bunch of smaller places, such as:
- Vui Ve (they just opened, they do pho and had a perfect bone broth)
- EAT (one of the better brunch spots in the area IMO)
- Pitfire (it's a local chain but open really late and good pizzas)
- A ton of good bars
And Studio City has:
- Bacari (again, another local chain but the tapas are good and you can't beat their drink deal)
- Black Market Liquor Bar (recent changed to a dinner place, but another excellent tapas place)
- Laurel Tavern (one of my favorite bars)
- McConnells Ice Cream (it's better than Salt and Straw, fight me)
Considering you can be done with Universal Hollywood fairly quickly, there's no reason to do anything other than snack while you're there and then go get a proper meal when you're done.