Buying pre-cut or frozen veggies is definitely a preemptive accommodation (even if it comes as a follow up to rotted veggies)
I think most additional costs, whether it’s a preemptive/preventative accommodation or as a consequence, can count as an ADHD tax. I also think it’s important not to restrict it as just having the term made it easier for me to spend that extra bit of money to make my life easier.