Ah, ok, so you're not in an office environment or similar. I still think regularly checking in with yourself and finding some grounding tools (if you haven't already got them) to help you stay present and in your body would be really helpful and I think you could make them work in your environment.
One of the most effective grounding tools for me is running my hands under cold water - if that's one that works for you, that's easily done in a kitchen :-)
How do you usually try to ground yourself if you start dissociating or get triggered (at work or elsewhere?)
I guess another sort of related tip could be to practise some mindfulness i.e. do things in a conscious, mindful way. E.g. if you're handling food, be really aware of what you're doing and tune in to whichever senses you can. So, if you're chopping peppers, for instance, you could really concentrate on: how the pepper skin feels against your skin (its temperature and texture etc); the weight of the knife; the smell of the peppers as you slice into them etc.
It doesn't mean you have to spend ages doing every little task - just that you purposefully put your attention there while you're doing it so that your head doesn't drift off into either dissociation or rumination.
Other people may have other suggestions but, for me, grounding tools to stay present, performing tasks mindfully and distracting yourself if you find yourself ruminating are the places I would start.
