01 - Warm olive oil in a large skillet over medium heat.
02 - Add beef bacon strips and cook for 4 to 5 minutes until crisp. Remove with a slotted spoon and set aside, leaving rendered fat in the pan.
03 - Place Brussels sprouts cut side down in the skillet and cook undisturbed for 5 minutes until browned.
04 - Stir the sprouts, add minced garlic, and continue sautéing for 5 to 7 minutes until tender and golden.
05 - Return beef bacon to the skillet and season with salt, black pepper, and red pepper flakes if desired. Toss thoroughly to combine.
06 - Remove skillet from heat. Add lemon zest and juice, then toss well prior to serving.