We order the Italian beef sandwich package which includes:
5 lbs beef (comes shrink-wrapped in 1-2lb. packages)
3 containers of 'au jus' (comes frozen)
Green peppers sautéed in olive oil
1 jar Marconi Giardiniera- hot
Italian bread rolls- par baked (you finish baking at home)
They give you full instructions on the proper way to prepare the beef.
Hint: It must be 'fluffed' an hour or so before gently heating.
Portillo's has a signature salad- they don't offer that for ordering, but I have the recipe and make that at home. Guests usually wipe that out with gusto, too!