Dredge fish fillets in flour and a little salt. Place in baking dish.
Saute onions in Lemon Oil.
Spread onions over fillets.
Wisk together the Lemon Oil, lemon zest, Champagne Vinegar, garlic, oregano, mustard, parsley, coriander, and wine.
Pour the dressing over the fish.
Bake uncovered in a 350 oven for 45 minutes.