I grow quite a lot of veg, and try to use most of it. never had any problems with home grown. no chemicals so know it is good.
broad beans, runner beans, including a couple of odd ones., onions, strawberries. cherry tomatoes. leaks, I donot grow lettuce. as it goes to seed so quickly and not a great lover of them as it would mean eating that everyday so as to stop them sprouting. radishes. are good. raspberries, beetroot.
The only thing I buy as part of veg is Pots. not been successful growing them always a problem plus different veg.
Hope it helps Anne