It depends on what type of bread you use, how much lamb and what other ingredients are in the sandwich.
There are about 333 calories in a pork burger. Please see related source link below.
803 calories 3370 kilojules
There are about 170 calories in a salmon burger patty.
611 calories for the burger
over 990 calories for a crunch burger
500
A 10 oz Boca burger contains 70 calories.
An angus burger with cheese has about 430 calories, on average.
200 calories.
130 calories
It depends on what kind of burger but an average cheese burger is around 300 calories.
A 4-oz burger has roughly 159 calories (this is just the meat).
350 calories
300 calories.