What is a good seasoning to use when grilling catfish

Mrs. Dash Lemmon Pepper.

KIS - keep it simple - a little olive oil to keep it from sticking and salt and pepper. It is really all you need with any fish. Especially if you do not want to overdo it.

I was going to suggest Cajun or Creole seasoning, but you do not want to ''overdo'' it:) .. I still think Creole seasoning (I like Tony Cachere's) is best. You do not have to overload it as much as if it were blackened:) .. otherwise, Dill is always a good herb with fish

garlic powder, salt to taste, pepper (black or lemon), rosemary and cumin powder does great..try chilli powder to make it a little more hot.
and we have it with tartar sauce after its cooked..
or maybe even lemon butter, which includes, butter, lemon juice, tabasco and chopped spring onions..
yummmm...