Alternatives to fruit for grazing

Rather than eat large meals, I tend to graze on 5-6 small portions throughout the day and top up as I need to (e.g. grab a handful of something when I start to feel tired or out of energy). However, I've gotten a bit lazy over the past few months and now at least 2-3 of those small meals is fruit so the vast majority of my "5 (6 or 7) a day" is fruit based. This is usually when I'm at work and I've a bit bag of fruit with me so it's the easiest option.

Given the high sugar content, I'd like to vary my grazing habits, cut down on my fruit intake a bit and increase my intake of veg & cereals. I've decided to start bringing some brown bread, nuts, popcorn, sliced carrot/celery for mid-morning/afternoon snacks. I was also thinking of making up some breakfast rice and bringing small yoghurt sized pots but that may be a bit awkward in the office. I used to snack on cereal bars but finding ones that don't have load of extra processed sugar is a bit of a pain.

Does anyone have any other delicious/interesting ideas for non-fruit based snacks? Ideally non-fuss/mess as I'll need to eat them at my desk at work - and before anyone says it, yes I know how many germs are sharing my desk with me

Cheers,
Jack