Still time for most things.
What do you actually like to eat? Lots of beans, including beans for the freezer? Lots of salading stuff? Carrots? Bit late for sowing tomatoes, but you could buy plants. Courgettes? Winter squash?
What does the family like to eat? No good growing it if nobody likes it.
If you have lots of things you like, go for what is unobtainable or expensive in the shops. Many people I know don't grow potatoes because a 50 pound bag isn't expensive and they want to use the growing space for more exotic things. Personally, I want things available year round, so grow summer and winter veg.
And if you are really ahead and the jobs are done, then just sit back with a drink of your choice and just enjoy the garden - you've earned it!