Dont blame the cheeseburger for being held upside down. Blame whoever was in charge of the photoshoot. :)
It's:
Top Bun
Bacon
Mayo (gross)
Cheese
Hamburger Patty
Onion
Tomato
Lettuce
Bottom Bun
Flipping it over wouldn't help. It should be:
Top Bun
Onion
Tomato
Lettuce
Bacon
Cheese
Hamburger Patty
Bottom Bun