First, place olive oil, pepperoni, onions, salt, and pepper in a pot on medium heat. Stir and cook for 2 minutes.
Next, turn up the heat to high and add both the sausages. Break up the sausage and let it cook without string for 2 minutes (this will get a brown caramel color on one side sausage).
Now, mix the sausage mixture for 1 minute and then add the marinara and basil.
Next, cook for 20 minutes covered.
Finally, add pasta and parm cheese. Mix for a minute to marry the flavors and enjoy!