grazing at work

Hi!! I work in a deli and there is almost always samples sitting on the counter, from donuts and cookies to boursin cheese and bread. Any tips to avoid grazing on shifts where I run out of time to take a break and eat my own healthy meal??? It's easy for me to go a whole week eating healthy and tracking calories but when i work that weekend I sometimes binge on bits of food that dont make the cut to be sold. My brain justifies it as, well its gonna get thrown out anyway! I cant chew gum while working. I am thinking about having a small container of pre portioned dry food I could have nearby for the shift?? Maybe grapes or roasted chickpeas? Any good low cal snack foods/recipes?