Italian Sausage Sandwiches

4 crusty long rolls
4 Italian sausages
2 red peppers
2 green peppers
2 medium onions
Roasted garlic cloves
Olive oil

Slice the sausages in half. 
In a frying pan with a bit of olive oil fry the sausages on both sides til done. 
Set aside and keep warm. 
Slice the peppers into long strips ½ inch thick. 
Thinly slice the onions. Saute together in sausage pan with a few tablespoons of olive oil til they are soft and begin to turn golden brown. 
Make garlic butter by mashing together about 2 cloves of roasted garlic with 4 tablespoons olive oil. 
Slice the buns and grill lightly, brush them with the garlic butter and place in each bun 2 sliced sausages and a good amount of the pepper-onion mixture. 
Serve hot.