Here's my solution: At least as far as Uno's goes, you can get ground pork and mix in a little onion powder and garlic powder and black pepper and allspice, and that's about it. It's not a spicy sausage.
OR, what works for me is to get Lithuanian Sausage. Two problems.....it can't be any kind, and it's in Chicago (Evergreen park, to be exact.) AJ Meats in Evergreen Park has had the best Lithuanian Sausage for DECADES now. It may be a little coarse for some, but if you have a grinder, you can always re-grind a little finer. The info is:
AJ Meats Incorporated
3541 W 99th St, Evergreen Park, IL 60805
Don't know if they ship, but good luck.