Add the chopped bacon to a medium skillet and heat over medium heat. Tossing occasionally, cook the bacon until crisp (about 8-10 minutes). Transfer the cooked bacon to a paper towel-lined plate and set aside.
Place the halved Brussels sprouts in the same pan, halved side down in a single layer. Cover and cook on medium heat for 5 minutes.
Meanwhile, stir together the maple Dijon sauce ingredients in a small bowl. Set aside.
After 5 minutes, uncover the pan, toss the Brussels sprouts, and cook another 5 minutes uncovered, stirring occasionally.
Pour the maple Dijon sauce into the pan and toss the Brussels sprouts to coat. Add the bacon back to the pan as well, and continue to cook for 1 minute. Serve!