As I am by myself and do enjoy having plenty of different veg with my main meal, I always used to buy fresh carrots, cauliflower, broccoli, etc. when I did my weekly supermarket shop. Always ended up throwing some of these away towards end of each week due to them looking dried out and not very nice.
About three years ago, I moved over entirely to using frozen veg and it is wonderful. Keep in my freezer some cauliflower, Broccoli, Peas, Beans, carrots, and, my favourite, - brussell sprouts. Able to have a really good mix of veg with my meals, no wasted food -and I have been given to understand that the vitamen content of frozen veg is the same as that freshly picked.