This is an actual recipe from the Alaska Department of Fish and Game Cookbook. It is unusual and although I haven't yet tried it, it seems like an innovative idea.
1 whole salmon, 4 to 7 lbs
1 lemon, sliced
Foil for wrapping
½ onion, sliced
Herbs of your choice (tarragon and savory recommended)
6 slices butter
Place the whole salmon in the center of the foil, season with herbs inside and out. Place half the slices of butter inside of the fish and the other half on top of the fish. Do the same with the slices of lemon, arranging them in the cavity and on top of the fish. Fold the foil and roll the edges so that the entire fish is sealed.
Finally, arrange your dishes in the dishwasher, leaving room on the top shelf for the foil wrapped salmon. Place the salmon on the top rack of the dishwasher, being careful to not pierce the foil. Turn on the dishwasher, normal or hot cycle and wash your dishes as you normally would. By the time the washer is done with the drying cycle, the fish will be done and ready to serve on your clean dishes. Simply unwrap the fish at the dinner table and serve with vegetables of your choice.