These Cheesy Brussels Sprouts with Gruyere and Bacon are divine. First, they're roasted to perfection with bacon bits, then smothered in a creamy béchamel sauce with Gruyere cheese (Mornay sauce), and finally broiled until bubbly and golden brown.
Place your Brussels Sprouts cut side down on a baking sheet; add chopped bacon around the Brussels Sprouts; Sprinkle with salt and pepper;
Place baking sheet in the oven and roast Brussels Sprouts for about 20 minutes. Halfway through, mix it all up to evenly distribute bacon fat;
In a skillet melt a butter, add flour and mix well using the whisk; gradually start adding milk and mix the sauce until smooth and thick;
Turn off the heat under the sauce and add 1 1/4 cup of Gruyere Cheese, mix well;
Add nutmeg, pepper, and as much or as little salt as you wish;
Remove the sheet pan from the oven and transfer Brussels Sprouts with bacon into an oval baking dish;
Pour the sauce over the Brussels Sprouts, add the remaining 1/4 cup of cheese on top and broil for 5 minutes until bubbly and golden brown; Sprinkle with fresh parsley for garnish and serve.