Cut the bacon into small bits, add to a saucepan and cook until crispy. Set aside.
Heat the olive oil in a medium size pot, sauté the garlic and chilli, add the tinned tomatoes, stir and add dried herbs, salt and black pepper to taste.
Simmer on low heat for about 15 minutes.
To serve, you can add the sauce to the cooked spaghetti; give it a good mix, plate and top with bacon, parmesan, more seasoning and fresh herbs.