Preheat oven to 400 degrees.
Meanwhile also heat a heavy ovenproof skillet.
Rinse sprouts and dry completely.
In a medium bowl, add sprouts, oil, salt, pepper and Harissa, and stir until combined.
Put the sprouts flat side down in the skillet and allow them to sear until golden brown.
Turn sprouts over and put pan in oven until browned to your liking.
Remove from oven and drizzle with honey before serving.
If desired, you can add some red pepper flakes to add heat.