$3.00. The makings of about six fish cakes. Great deal.
These can be made with crab and usually are: however, if you find scraps of fish on sale you can easily make a few fish cakes cheaply.
Poach the bones or scraps and allow to cool. Then separate the bones from the meat. Flake the meat into a bowl and add a little mayonnaise and Dijon mustard. Add to this some white breadcrumbs to soak up the wetness from the mayonnaise. Some people add crushed graham crackers I believe. Season with salt and pepper and form into patties counting two per person.
This is a quick and easy method. You can also add chopped herbs or diced peppers to the mix. As long as they retain their shape and not get too moist you can add anything you want.
I serve these with a home made tartar sauce and some lemon with french fries and a little salad.