Why does my urine smell like sausage every time I eat it?

Spices. Lots of sausage brands have some spices inclusions and those may not be processed by our bodies and penetrate in the urine unprocessed causing your urine to smell like that.
Water intake? Urine is a byproduct of the kidneys filtration of the blood. It is common for urine that is concentrated to have a stronger odor. Increasing water intake helps with this. However, vitamins and certain medications can also give the urine a stronger odor.