Wash the peppers, remove the stems and seeds and slice them.
In a saute pan, add the oil, peperocino, garlic and the onion.
Saute until the garlic turns lightly golden.
Add the peppers and turn them into the oil almost continuously. Add salt as desired.
Continue cooking the peppers until they become soft (about 20 mins.)
Grill the sausage to your liking and assemble your hero sandwich!