A few thoughts..
I'm not sure how you do your crab cakes, so this may not work.
How about a flat bed of potatoes? Sorry, don't have photos to explain, but very thin slices of potatoes, preferably smaller ones, kept whole so slices are round. In a non-stick pan, put a bit of butter or half butter half veggie oil. Put one potatoe slice in center of pan, then overlap another row, etc, then add a layer. If your non-stick skiller is small, you can make one per person, and lay it under your crab cake. Hmm. This is something I'll have to prepare with loads of photos to show the technique.
Appetizer, you can go many ways. Can do an all seafood dinner, and use jumbo shrimp with a pernod cream sauce maybe? Or something entirely different, a curried cauliflower flan?
Green salad, nice after the cake.
Dessert, not too heavy. Maybe fresh fruit with a light coffee sabayon?
Dunno, just a few ideas smileys/smile.gif