Step 1

Preheat oven to 400º F.

Step 2

Toss brussel sprouts in olive oil and season generously with salt and pepper. Place them in a large baking dish and roast for 15-20 minutes, or until semi-softened.

Step 3

In a large bowl, whisk together egg, heavy cream, rosemary, garlic powder, onion powder and red pepper flakes (if using), then stir in cheeses.

Step 4

Remove brussel sprouts from oven and add 3/4 bacon to the baking dish. Pour cheese mixture over the top and stir everything together, then top with remaining bacon.

Step 5

Reduce oven temperature to 350º, return baking dish to oven and bake for 20-25 minutes, or until cheese is bubbly and just set.

Step 6

Remove from oven and let cool 5 minutes before serving.