Serve this salad of roasted beets with our Halibut with Mushrooms dish.
Preheat oven to 400 degrees. Drizzle beets with 1/4 cup oil on a rimmed baking sheet; season with salt and pepper. Cover with foil. Bake until tender, about 65 minutes.
Let cool. Rub off skins with paper towels; discard skins. Cut into wedges. Put golden and red beets into separate bowls.
Whisk vinegar and remaining oil in a small bowl; season with salt and pepper.
Drizzle beets in bowls with dressing. Season with salt and pepper, if desired. Toss together just before serving.