(or your favorite thick fish filet)
Place halibut filets in baking dish. Mix half sour cream and half mayonnaise into a thick paste and rub into fish. Bake at 350 degrees for 45 minutes.
Remove and drain. Top with grated cheddar cheese and return to oven just until melted.
Serve with rice.
We know, we know, a mayonnaise paste on fish sounds terrible, but just wait until you try it.