The Cudighi Sandwich is a favorite in Michigan's Upper Peninsula and we can see why: sweet and spicy sausage, melty cheese, and grilled vegetables with a rich tomato sauce on a roll.
Gently cut the sausage casings lengthwise and put the sausage in a medium sized bowl. Repeat until all links are in.
Add cinnamon, paprika, allspice, and nutmeg and mix with hands to combine evenly. Split into three even chunks and shape one at a time into a long thin patty. (Make about the size of the bread).
Place a skillet over medium high heat and add olive oil. Add bell peppers and onion, sautéing until soft about 5 -7 minutes. Add salt and pepper and mix. Remove from heat and place in a bowl. Set aside.
Cut your roll in half lengthwise and butter each piece. Lower heat to medium and add roll, cut side down, to toast the buns. Take off after browned, 3 - 4 minutes.
On medium heat, add sausages (cook in batches if needed). Cook until browned on on side, about 5 minutes. Flip and cook for another 2 minutes. Lower heat to medium low, add cheese on top of patties, and cover with a lid or sheet pan. After a couple of minutes remove the cover (cheese should be melted). Remove from heat and set aside.
Assemble. Place a dollop of heated up tomato sauce on the bottom bun and spread evenly. Add a sausage patty. Place peppers and onions on top. Add another small dollop of tomato sauce. Top with roll end.