Oh, phew . Not all falling on deaf ears then!
Growing your own veg is pretty easy. Just takes a little bit of homework before you start so you know when to put things in, what will grow quickly or slowly ie you can sow parsnip seeds and beetroot inbetween. The beetroot will be ready to go in 14-16 weeks whereast the parsnip will take 20 or so. So you can grow them very close together, maximising space because they wont really interfere with each other.
You do at least need a light and warm windowsill to get some of the plants started early (if you cant stretch to polytunnel or fleeces like some folk can).
Onions, spring onions, salad leaves, beetroot, broad beans and herbs dont take up much space at all and are pretty fast growing.
Courgettes are really easy - need NO care and are prolific fruiters.
I'd say peas arent worth the bother. You dont really get that much of a crop if you dont have space for A LOT of plants. Although they are utterly delicious eaten straight off the plant . Leeks - very easy and tasty.
Sweetcorn - I grew 4 plants in half a square metre and got 6 cobs so not sooo prolific but boy did they taste sweeeeet.
You MUST all get a blueberry bush. Well, you need two actually, but you get what I mean! An absolute superfood - all it needs is a pot full of ericaceous compost. The fruit it provides is phenominal and much tastier than supermarket ones.