Cook onion slices in boiling salted water until tender; drain.
Rinse bean sprouts thoroughly; drain well.
Arrange layers of onions, almonds, bean sprouts and soup in casserole; sprinkle each layer with salt and monosodium glutamate.
Toss crumbs in butter; sprinkle over top.
Bake in 350-degree oven for 30 minutes or until heated through.