From WW's Hit the Spot. The original recipe called for red snapper, but catfish works well, too. You can use any firm white fish, so mahi mahi, grouper, tilapia, haddock, or cod will also work to suit your personal preference. (Sole or flounder would be too thin.) 4 WW "thingies" on old plan, but add 2 "thingies" if add 1/4 avocado to each serving. Update 5/4/13: Made these for myself, and I was disappointed: the fish didn't stay hot after flaking, the cabbage-onion mixture overwhelmed the fish, and cold tacos are a waste of calorie expenditure. DH would have preferred lettuce to cabbage, although lettuce has no nutritional value.On the plus side, the lime juice kept the avocado from spoiling. For a better fish taco, try WiGal's WiGal's Recipe #480852 #480852.