There is a Freshwater Prawn farm around 30 miles up from Fort Worth in Wise County. They have 3 ponds that they harvest in September on three consecutive Saturdays.
I picked up a couple of pounds last Saturday and grilled them on sticks. They have a sweet, lobster taste and are a steal at $8 a pound.
Here are some pics:
I also put together a little video.
And wrote a little story with recipe.