The fresh sausage will offer a dose of umami, smokiness, flavor from the spices and herbs, and perhaps a subtle sweetness depending on the type you cook ... sausage from the casings for this ...
Some sausage meat packets already have added spices and you can even use flavoured sausages, squeezed from their casings, to make stuffing ... or 2 tsp finely chopped fresh rosemary.
It's a spicy pork sausage used to impart a ... mixed with flavorful spices (and sometimes fresh ingredients like garlic and onion) and stuffed into casings (either animal-derived or synthetic).