Preheat oven to 425°. In a bowl, combine the first 8 ingredients. Cut each fillet in half widthwise; place 2 halves in a greased 8-in. square baking dish. Press crab mixture onto fillets; top with remaining halves. Sprinkle with paprika. Bake, uncovered, until fish just begins to flake easily with a fork, 22-26 minutes.