I haven't read anything about flaxseed and workout recovery but I can tell you that flaxseed is a good source of essential fatty acids. In general getting a good amount of flaxseed or other Omega 3,6,9 fatty acids is a "good thing(tm)".
I use flaxseed oil as a primary source of fat. Just add it to my shakes.
For me after a workout I do the following:
Immediately after workout have a "shake" comprised of about 100g International Protein (brand) - Extreme carbs, 5g/1tsp Creatine, 5g/1tsp Glutamine and along with it 1000mg Vitamin C.
The extreme carbs is an "energy an glycogen recovery formula" that contains a few different types of carbs all with different glycemic indexes. This means that you get a good staged release of carbs to get glycogen back to your muscles rather than just one type.
Creatine and Glutamine are commonly used supplements and the Vitamin C is there because I've gotta get my daily allowance and don't get much from the bulking diet I am on. It is necessary for healing/tissue repair.
To be honest, the Extreme carbs doesn't taste very pleasant. Something like drinking weak icing sugar mixed with rice flour. It could do with some serious flavouring, but as I've just started this regime, I haven't figured a way around that yet. There's a few flavouring products on the market but I'm yet to try them.
It's only after I work out so I guess I can put up with it.
Extreme carbs is also pretty cheap.. something like 30 bucks a 1.8kg tub.
There is another product called Vitargo which is supposedly a much better form of carbohydrate. It is made entirely of Barley Starch, but it costs about 3 times the price. To be honest, I'm not sure that it would be worth it. If plenty of people have been developing good muscle without such products for years, I sincerely doubt it would be worth three times as much.
Another product you should check out is by EAS called Phosphagen HP -- it is creatine combined with another carb (if i recall) that is shown to be about 1.6 times as effective as regular creatine. The catch is that it's normally around 80 bucks a container and due to labelling problems the importer said that it probably won't be on shelves again until 2009!
I managed to find some on eBay that just past it's best before date. I figure the stuff should still be OK, but if you find me dead on the floor you know why LOL
cheers