Packaged Meals and Clinics - Nutrisystem, Medifast, Jenny Craig, Etc - Help.. Protein alternatives for NS??

I have been doing great with my NS plan. Except that on Sunday I got diagnosed with gallstones *ouch*, while I wait for a consultation with the surgeon, I was put on antibiotics. I have to have them with food, but it can't be dairy (and I can't have any 6 hours before or 2 hours after), because I have to take them twice I day, I am having them with breakfast and dinner.

I typically was having yogurt for my morning serving and sometimes cheese for my afternoon snack, I can't have those now and I am stumped.

I've had a boiled egg for the past couple of days in the morning and tuna at lunch, but I can't think of much else since I also have to make sure the snacks are low fat so that I don't trigger another attack. I am having trouble specially with the afternoon snack. Any suggestions? My brain just won't come up with anything.

I eat almonds sometimes as my protein selection...save a fruit and have raisons with them, a nice snack.
What about chicken breast? Have that on a salad.

Sometimes I have a scoop of peanut butter using my protein and fat selection.

That's all I can think of at the moment.