An easy sandwich to put together but the flavors will make it seem as if you spent all day making it! The caramelized onions bring a sweet and unique flavor that helps make this sandwich irresistible! Get this caramelized onion, mushroom, and swiss cheese melt on your table!
Added chicken sausage and mushroom. Browned sausage first than cooked onion, garlic and mushroom. After sauce was cooked, used immersion blender to help thicken sauce and only used 1/2 the cream cheese. Served with fresh parm on top.