I buy brussel sprouts and cauli and broccoli in Waitrose in little bags all washed and ready to cook. Can I stick them in the freezer, after buying them, and pull them out ready to cook on Christmas day. I am not sure - and it doesn't say anything about freezing on the bag ?
Can I suggest that you buy fresh whole veg and use the huge amount of money saved to make a contribution to a charity of your choice ( mine would be the Dogs Trust...http://www.dogstrust.org.uk/ )
By veg with mud on ! Keith Floyd said this years ago, and he was right !