Great stir-fried, grilled, poached or baked, farm-raised catfish has a beautiful firm texture like tuna or swordfish–but at about half the cost. Unlike wild catfish, which are bottom-feeders (a real turnoff to some consumers), farm-raised catfish feed at the surface of the water. The mild, almost sweet taste and non-fishy odour make this the perfect fish to win over kids who may only like fish sticks. And a 4-oz (125-g) serving has just 169 calories and 9.5 grams of fat. Look for catfish at the fresh fish counter of most supermarkets.