1 lb. cod, or other white fish
2 cups milk
Salt
Fresh ground pepper
1/2 cup unsalted butter
1/3 cup gf flour
1-1/2 cups mushrooms, sliced
3 tomatoes, peeled and coarsely chopped
8 oz. shrimp, peeled, deveined and coarsely chopped
1 Tablespoon lemon juice
2 Tablespoons gf sour cream or
creme fraiche4 medium russet potatoes, peeled, boiled and mashed with 2 Tablespoons unsalted butter and enough half & half for mashed potato consistency