For a wedding on a budget, I would not recommend Portillos. We looked into, but everything is really expensive. You're basically paying for a full price meal for each guest, and though the quality is really good, it's not worth it. There are so... many other places where you can get the same types of food for the same quality but for cheaper. By all means, though, if you are not on a budget, then Portillos is a great place to get catering because it is delicious!
