Borrowing a few cues from the CBO, the McDonald's hamburger variant keeps it simple with a beef patty topped with grilled onions and white cheddar pasteurized cheese product. It's pretty much a junior-sized CBO minus the sauce and the bacon. For $1, that's pretty nice.
I have to say, I like the simple approach. Cheese, beef, and onion... sounds good to me.
Nutritional Info - McDonald's Grilled Onion Cheddar Burger (115g)
Calories - 310 (from Fat - 120)
Fat - 13g (Saturated Fat - 6g)
Sodium - 660mg
Carbs - 33g (Sugar - 7g)
Protein - 15g