Cook the bacon. Over a high heat, cook the bacon until golden & crispy. Using a slotted spoon, remove the bacon from the skillet leaving behind the bacon grease. Place the bacon on a paper towel-lined plate for later use.
Add the seasoning. Once the Brussel sprouts are tender, add the salt, pepper, onion powder, & dried parsley. Mix to combine.
Add cream & bacon. Lower the heat & add the heavy cream & cooked bacon. Simmer for 5 minutes.
Top with cheese. Sprinkle over the mozzarella & parmesan cheese.
Place the skillet in the oven & bake for 15 - 20 minutes.
You can broil the dish for 5 minutes if you prefer a more golden cheese topping.