Best High Protein Snacks for Office Workers on a Budget

I am finding it really difficult to hit my protein goals while working a busy office job in Toronto. By the time 3 PM rolls around I am usually starving and I end up buying a muffin or a bag of chips from the vending machine. I need some ideas for high protein snacks that are easy to pack and do not cost a fortune.

I have been buying Quest bars but they are getting so expensive at the local grocery store. I am looking for something that I can prepare in bulk on the weekend. I have tried hard boiled eggs but my coworkers complain about the smell in the break room so those are out of the question for now.

What are you all eating at your desks? I am considering things like Greek yogurt or maybe beef jerky but I am worried about the sodium levels in the store bought stuff. I have a small fridge available at work so that helps a bit with storage options.

If anyone has a simple recipe for protein balls or something similar that does not require a lot of expensive ingredients I would love to hear it. I am trying to save money for a trip to Vancouver later this year so every dollar counts.