Ingredients

2 cups chopped kale, Swiss chard, or spinach

1/2 cup diced roasted beets

1 tsp extra-virgin olive oil, plus more for drizzling

Coarse salt and freshly ground black pepper

1 tsp prepared Dijon mustard

1 5-oz halibut fillet, skin removed

Lemon wedge, for serving

Preparation

Heat oven to 400 degrees. Arrange greens and beets in a small baking dish. Drizzle with oil, season with salt and pepper, and toss to coat.

In a small bowl, whisk oil and mustard. Season halibut with salt and pepper and place on top of greens. Spoon over mustard sauce and cover with parchment-lined foil. Bake until greens are wilted and fish is cooked through, about 20 minutes. Squeeze with lemon.