This salad showcases cool-season ingredients such as kale, endive, lemons, and mandarins. Garnish it with pomegranate seeds or toasted pumpkin seeds if you like.
Preheat the oven to 400 degrees. Cut lemon and oranges in half crosswise and remove any seeds. Place in a small baking dish and toss with 1 teaspoon of the oil. Turn cut-side down and roast until tender and lightly browned, about 40 minutes. Allow to cool.
Using a spoon, remove flesh from citrus and place in a blender. Pour in any juice from the baking pan. Add honey, salt, and pepper, and blend until smooth, adding a tablespoon of water if the mixture is too thick to blend easily. With the motor running, slowly add remaining 2 tablespoons oil. Place vinaigrette in a large skillet over medium-low heat. Add kale and stir until lightly wilted, about 3 minutes. Add radicchio and endive, and toss until coated and warm. Divide among plates and serve warm or at room temperature.