What can I use for breading fish besides eggs or dairy?

I just read about a cornstarch slurry in 'Artisan Food in 5 Minutes a Day', meant to adhere seeds to bagels. It is cooked, so is unusual. I will look for it when I get home tomorrow. That may do well for a neutral sticker. My friend has an egg allergy so I'm always looking for something like that. I usually make her bagels and use Ener-G Egg Replacer as stickum and it works well for that. When you want flavor, the mustard coat sounds fab. I've done it on chicken and it is really good with panko crust.

For a spicy flavor on catfish I rub mustard on the filet. Then I hit it with a few shots of hot sauce such as Tabasco and dredge in corn meal. Simple, easy, spicy and tasty

I like using a light coating of mustard. There are many to try, and they all give the fish a different taste.

I use a blend of 1/2 nutritional yeast, 1/2 cornmeal + seasonings.

I like club soda. It works particularly well for calamari. Nuts are also nice- pecans or almonds would be my first two choices. Pistachios or pine nuts might also work well.

you need a dry-wet-dry combo for the best crispy results. If you are looking for other "wet" ingredient ideas...have you tried beer? orange juice works well if you want a caribbean flavor to your dish.