Dunkin' Donuts for a limited time this winter.
First introduced last year, the breakfast sandwich features a split smoked sausage link, an egg, and a slice of American cheese on an English muffin.
I managed to try one at the beginning of this year, on a rare occasion where I found myself on the East Coast. You can check out the review here.
Nutritional Info - Dunkin' Donuts Smokehouse Sausage Breakfast Sandwich
Calories - 550 (from Fat - 320)
Fat - 36g (Saturated Fat - 13g)
Sodium - 1510mg
Carbs - 36g (Sugar - 4g)
Protein - 21g