A bacon portabella melt from Wendy’s contains 640 calories. The sandwich includes a quarter-pound beef patty, two strips of bacon, American cheese, and grilled portabella mushrooms on a toasted bun.
There are also 340 calories in the bun alone.
The caloric content of the sandwich is largely due to the beef patty and bacon. A quarter-pound beef patty contains approximately 200 calories, while two strips of bacon contain approximately 120 calories.
The American cheese and grilled portabella mushrooms add approximately 100 calories each. Thus, the majority of the calories in the sandwich come from the meat and cheese toppings.
