Although the original recipe calls for Halibut, I've found that any firm, white fish will work. If your fish is frozen, soak it in milk to help remove the frozen "fishy" taste. This is an easy recipe that comes together fast. Except for the fish, most people will have all the other ingredients on hand. I love this after a hard work day....quick, easy, and delicious! Original recipe is from the "Reflections of the West" cookbook, but I've made a few changes.