Preheat oven to 400 degrees F.
Place all ingredients except for honey into a large bowl and toss to coat cauliflower. Place on parchment-lined baking sheet in a single layer. Drizzle honey over top of cauliflower. Place in oven and set timer for 35 minutes
Set arugula, radishes, and anything else you'd like to serve with them. Plate with roasted cauliflower and enjoy!