Step 1

Add the Italian Sausage to the slow cooker.  Top with the bell peppers and onions.  Sprinkle on the salt, garlic, Italian seasoning, and cayenne if using.  Pour on the marinara sauce. Cover and cook on low for 6-8 hours or on high for 3-4 hours.

Step 2

If desired, toast the hoagie rolls under the broiler for 1-2 minutes.  Fill each roll with one sausage and desired amount of sauce.  Top with shredded cheese and broil for 1-2 more minutes until cheese is melted.  Serve immediately.