Heat the sherry, onions and mushrooms until the sherry is almost gone.

Add half and half, then scald and thicken with roux or cornstarch.

Simmer for a few minutes. It should be thicker than a sauce.

Add imitation crabmeat flakes and place mixture in a casserole dish, topping it with the cheese and breadcrumbs.

Bake for 20 minutes at 350° or until bubbling hot.

Serving over steamed rice or pasta.