Haddock With Red Currant - With greens

8 ounces haddock (or other white fish) 1/8 small red cabbage , about 1/2 inch thick slice 1 slice Spanish onion , about 1/2 inch thick 1 slice large tomato ,[...]

1 tablespoon vegetable oil 4 small red potatoes, sliced thin 2/3 cup red onion , sliced thin 1 teaspoon red pepper flakes 3/4 teaspoon thyme 1/2 teaspoon[...]