What can I plant now?

Hello everyone!
New gardener. Just sorted out raised bed ready for planting but what can I plant this time of year? Is it too late for onions? Cauliflower? Cabbage? Beetroot? Parsnips? Please can someone tell me ??!!!
Lizzy T:confused:

 

This week we are mostly ......
....... going to put in beetroot to have as baby beetroot (we put in 2 rows earlier on but only one was successful). Rocket because we have only just discovered it and it is so expensive in the shops. We are also going to do swede for the first time. The pigeons would eat spring green and the like so we aren't doing them.