Halve and cut peppers and onion into slices.
Mince the garlic.
Slice the sausages.
Drizzle some oil on a medium/large pan and add garlic, onion and peppers until they soften a little.
Add the sausages, tomato paste, 2 cups of water and salt to taste.
Bring it to a boil and then let it simmer for about 10 minutes.
Fill the bread with the hot dog mixture and serve.