Welcome to Social Slimmers!
Do you have a local fruit & veg shop and or market? Maybe have a look around and compare some prices, I have friends who say they are cheaper than super market but I don't have one handy to where I live. Also they sometimes do fruit and veg boxes
Lidl can be very good for veg offers not forgetting Aldi's weekly super six:
Also to add I do buy frozen steam veg and sometimes frozen fruit for puddings