Hi,
Yes, you can use Bisquick to make a great batter fried fish. Here are a couple to pick from.
http://www.bettycrocker.com/recipes/quick-pan-fried-catfish/08c3eb75-a3de-4427-a0c4-4eaaf6fe4425
http://www.bettycrocker.com/recipes/spiced-tilapia-with-honeyed-mango-lime-sauce/6ca5533b-8da1-4934-a80a-d0bfb43a713b
Enjoy!