In a large cast iron skillet (or other skillet), cook the bacon on low to medium heat. When the bacon is almost cooked, add the chicken and cook it in the bacon grease on medium heat, about 4 minutes on each side.
Add the cauliflower, spinach, green onion, garlic salt, onion powder, lemon, salt and pepper, and cook until the spinach is soft and all ingredients are hot, stirring continuously.