Mustard Brussels Sprout Gratin with Crispy Bacon & Onion Topping

Ingredients

• Add the Brussels sprouts to the pan and cook until browned on one side. Remove from the pan and set aside in a large bowl.
• 4 slices bacon, diced
• 2 1/2 pounds Brussels sprouts, each cut in half
• 1 tablespoon unsalted butter
• 1 onion, thinly sliced
• salt
• 3 cloves garlic, grated
• 4 ounces cream cheese
• 2 tablespoons stone ground mustard
• 1 1/2 cups heavy cream
• freshly ground black pepper
• 1 cup grated parmesan cheese
• 1 cup crispy fried onions