01 - Preheat a grill or skillet over medium-high heat.
02 - Combine ground beef with salt, black pepper, and Worcestershire sauce. Form into 4 evenly sized patties, slightly larger than the buns.
03 - Fry the bacon slices in a pan over medium heat until crisp. Drain excess fat using paper towels.
04 - Grill or pan-sear the patties for 3 to 4 minutes per side to achieve medium doneness. During the final minute, top each patty with a cheddar slice and cover to melt.
05 - Lightly toast the burger buns on the grill or in a toaster until golden.
06 - Spread mayonnaise, ketchup, or Dijon mustard on the bottom buns as preferred. Layer with lettuce, tomato, and onion slices. Place the patty with melted cheese on top, followed by avocado slices and crispy bacon. Close with the top bun halves.
07 - Serve immediately alongside preferred side dishes.