No, you've lost me OP. I find fruit and veg a great way to feed/snack/eak out my meals.
A bag pf 5 apples for a £1, a bbag of carrots for 50p etc we eat tons of fruit and veg here, it goes very quickly!
I do have a car but I plan where I am going after school runs etc and use my ds's pushchair as a shopping trolley
we are big walkers so a 40 min walk is very do-able for us. I think it is what you do with it really.
For example when I make a chilli I reduce the amount of mince I use as I use onion, red, green and yellow pepper, celery, chopped carrot etc to bulk the meal up. Adds to our 5 a day and is cheaper. Planning meals is essential so knowing what I will use the rest of the veg in so nothing is wasted. Whatever fruit is starting to go off will all get added into a cake in a loaf tin, great treat for the dc and often freezer friendly.
Sainsbury's used to have the 'feed your faanily for a fiver' and I would think that's two meals at least!! A paqck of nice quality sausages, onion, celery, coupld of peppers, tin of toms, herbs and some pasta make scrummy, healthy and filling cheap dinner for about 3 quid for everyone.
You really can make your money go further with veg for exampke make a shep's pie but just use two potatoes, add suede and parsnips to the mash and add green beans, peas and sweetcorn to the carrot onion and meat.
I do like Aldi for their offers, my dc love their chocolate pennies and for 99p a bag if they have 2 or 3 for a treat it is far cheaper and better for them than a bar of choc/penguin bar sort of thing.
Planning and getting creative with your cooking will show you how thrifty you can be!!