How to Make It
Preheat oven to 400°F.
Place carrots, radishes, and chickpeas on a rimmed baking sheet lined with aluminum foil. Drizzle oil and butter over vegetables; toss to coat. Spread in an even layer. Bake at 400°F until carrots are tender and chickpeas are browned, about 40 minutes, stirring after 20 minutes.
Arrange vegetables on a platter; sprinkle with salt and pepper. Stir together mint and lemon zest; sprinkle evenly over vegetables.