Mousselines are a lighter version of the classic French quenelles, but without breadcrumbs. They are poached first in fumet (fish stock), then served "en gratin" in sauce normande.
Dragon's Kitchen: Poached Salmon with Mousseline Sauce
Fish Mousselines
Fish Mousselines
Fish Mousselines
Tony Bilson: Trout mousseline with yabby sauce
Fish Mousselines
St. Peter's Fish with Black Truffle Mousse, White Asparagus, and
Black Sea Bass en croûte with Aromatic Vegetables & Mousseline
Classic French Mousseline Sauce
Mousseline of Lobster Recipe with Champagne Beurre Blanc - Great
Monk Fish Garlic Mousseline Au Gratin Stock Photo 147838877