My Husband loves this dish.  Delicious..

 

1.5 to 2 lbs of rockfish or striped Bass    I like to get one large filet from Hill's Seafood

3 tab. mayonnaise

1 1/2 tab. Old Bay seafood spice

4-5 Crab cakes from Hill's Seafood or make your own crab cake/imperial recipe

 

Mix together the Old Bay and mayonnaise. Spread on both sides of fish. Broil fish 5 minutes on each side.  Remove from oven.  Break up 2 or 3 crab cakes and spread over the top of the fish. Bake at 350 for 35 minutes. 

I serve the extra crab cakes on the side.