If you like broccoli you might want to try growing calabrese.
I grew Calabrese Marathon this year, it's similar to broccoli and after harvesting the head, produces masses of side spears. This variety didn't seem to mind the wet weather either and can be sown as early as February, although I wouldn't recommend an early sowing. I seem to recall sowing it early April and was picking calabrese in July.
I planted similarly to brussels.
Another veg which caterpillars love