Red Snapper in Wine Sauce - With greens

1 1/2 pounds red snapper fillets 1/2 tablespoon butter, unsalted 1/2 tablespoon olive oil 3 each shallots peeled, minced * 1 each garlic clove peeled, minced[...]

4 (6 ounce) red snapper fillets 3 tablespoons lemon juice 2 tablespoons prepared mustard (I use French's Dijon) 2 tablespoons mayonnaise 2 stalks green onions[...]

3 lbs red snapper salt and pepper 2 onions , peeled and sliced 1 carrot , peeled and diced 2 tablespoons minced parsley 1/4 cup celery , sliced 1 quart water[...]