Preheat oven to 400 degrees

Cut the ends off the brussels sprouts then cut them in half if they are large.

Place them in a large bowl and add the olive oil, half of the Parmesan and salt and pepper and toss them.

Then place them on a baking sheet and roast for 20-25 minutes stirring about halfway.

Add the bacon and the rest of the Parmesan and additional salt and pepper if needed serve.