Preheat oven to 350°F. Line a large cookie sheet with parchment paper.

Spread brussel sprouts evenly on cookie sheet in a single layer. They should not overlap or they with not crisp.

Dice large onion and sprinkle over brussel sprouts. Set cookie sheet aside.

To a skillet or separate cookie sheet, add the slices of bacon. Cook bacon until done and soft, not crispy.

Once bacon is done, reserve the grease and rip the bacon into bacon bits. (This can be done in a food processor, if you like.)

Drizzle the bacon grease and olive oil all over the brussel sprouts.

Sprinkle with salt, pepper, garlic powder, onion powder, and parmesan.

Stir vegetables making sure all brussel sprouts are coated with the oil and seasonings.

Bake at 350°F for 30-45 minutes or until bottoms of sprouts crisp up slightly.

Enjoy!