Roasted potatoes go well with the fish. Toss 6 cups quartered red potatoes with 1 tablespoon olive oil and 1/2 teaspoon kosher salt. Arrange potato mixture in an even layer on a baking sheet, and bake at 400° for 40 minutes or until tender, turning once. Toss potatoes with 1/4 cup chopped fresh flat-leaf parsley. Add steamed green beans to round out the plate.