my patented charcuterie lunch box:

• jerky
• cubed Colby Jack cheese
• mixed nuts (I like cashews and almonds but you could probably do something cheaper like peanuts)
• dried fruit (I like cranberries and apricots but again you might find something else is cheaper)
• ritz or similar store brand crackers stored separately from the other items.

I buy the ingredients in bulk and pack them in small Tupperwares. they’re great to graze with at work.