There is still time to plant some vegetable seeds. The weather has been relatively mild, and it may be worth covering a small section of the garden with plastic to keep the rain off, whilst you get the seeds bought!
Several carrot varieties produce super early veg. Try Nantes or Autumn King. Both are available from Dobies of Devon
Beetroot seeds, such as Moneta and Alto, will also grow now. Broad beans are a must for autumn sowing, so if they are not in already, try Aquadulce