1 - step 1 Heat the oil in a large flameproof casserole dish or a cast-iron skillet over a low heat.

2 - Add the onions and a sprinkle of salt, cover and cook gently for 15 mins, stirring occasionally.

3 - Add the garlic and cook for another 2 mins.

4 - step 2 Next, throw in the peppers and cook over a medium heat, covered, for about 5 mins, stirring every so often, until the peppers are just tender.

5 - step 3 Mix in the oregano, thyme, bay leaves, some black pepper and a little salt, if needed.