I made this sandwich last week and it was a big hit with Ryan. I sauteed savory Italian sausage with onions, garlic and red and green bell pepper before finishing it off with a little dry white wine.
Brown sausages about 6-8 minutes on per side, transfer to a plate, cover.
In the same pan, add onion, bell peppers and garlic and cook until slightly tender, about 5 minutes.
Add white wine to the pan, cook 3 minutes.
Slice sausage and return it to the pan. Cook 5 more minutes.
Place hoagie rolls under a broiler until slightly toasted, about 1 minute. Fill with sausage, peppers and onions mixture.