I dont think you will be growing peas or tomatoes or even zuchini perhaps? in winter. But tomatoes and peas and zuchinis (and if you leave them longer you get marrows) are VERY easy to grow!
Beans, like peas are very easy.

You can easily grow pumpkins and your own potoatoes are super easy too, but take a little bit more effort because you need to prepare the bed for them.

I have not had much luck with the other veg, like carrots, brocolli, but will follow your thread to see what suggestions you get.

Yum - I love fresh out the garden veg!

eta - apparently your own garlic can be grown very easy any time of year too, but I have not tried it.