Optional toppings like hot peppers, provolone, crushed red pepper
Directions
Heat sauté pan over medium heat, add olive oil and sauté onions until golden translucent, about 3 minutes. Add Green Peppers on cook until peppers are bright green, about 1 minute
Add Italian sausage. While cooking, continually break about any large pieces of sausage.
When the sausage is cooked, add marinara sauce and continue to cook until sauce is reduced and add mixture is thickened.
Add mixture to sub bun and top with cheese, basil and any other toppings of your choice.