Add ground beef, salt and pepper, garlic powder, and grated Parmesan to a bowl.
1. Mix until well-combined.
Divide beef into 4 equally-sized balls and form into slightly flattened, round patties. Place on a plate and chill in the refrigerator.
Preheat oven to 400°F. Add bacon to a baking sheet lined with foil. If you have a baking sheet rack, use it to elevate the bacon.
Bake for 15-20 minutes, or until crispy to your liking. Drain on paper towels.
Prepare your caramelized onions.