Fry the bacon until it’s crispy, remove from skillet and allow to drain. Finely chop the bacon and set it aside.
Place the Brussels sprouts in a bowl and pour the grease from the bacon over the top. Season with salt and pepper, then stir to coat the Brussels sprouts in the bacon grease.
Spread the seasoned Brussels sprouts in an even layer over a sheet pan (baking sheet). Place in oven and bake for 30 minutes, stirring halfway through the cook time.
When the Brussels sprouts are tender, remove them from the oven and sprinkle the chopped bacon over the top.
Adjust seasonings (salt and black pepper) and serve immediately