Had a big crawfish boil yesterday. Crawfish have to be purged before you boil them. Once this is done you can cook them. (They should be alive). Save the dead ones for bait. WE had about 20 people and went through 80lbs about as fast as they were cooked. As far as the taste... It depends on the seasoning and the cook. They have texture like lobster and about the same taste unless you spice them up. Ours left your lips burning and your tongue begging for more.
Trout is great too.. They taste like trout.. A little like salmon. Excellent w/ lemon and butter broiled with some cheddar biscuits.. MMMMMMMM...