Place peppers and tomatoes in a baking sheet, lined with aluminum paper (for easy clean up).
Spray the peppers and tomatoes with vegetable oil (about 2 tablespoons).
Bake in a 400°F preheated oven for about 30 to 40 minutes.
Flip the peppers and tomatoes over after the first 15 to 20 minutes of baking.
Take out from the oven and place peppers in a ziploc bag (it makes it easy to peel off the outer skin). Set aside for about 5 minutes.
Peel off the outer skin of both tomatoes and peppers.
 Use a wooden mortar and pestle to mash the peppers and tomatoes.
First mash the peppers, then the tomatoes.
Mix tomatoes and peppers well and add salt to taste.
Drizzle with 2 to 3 tablespoons olive oil.
Serve warm or cold with Algerian traditional bread or any other type of bread.