To heat the oil to slow fire in a capacious frying pan. To put the tomato, the onions, the salt and a pinch of pepper. To put the cover and while it is cooking to mix sometimes, for at least 45 minutes. We pour pasta in 3 liters water in ebullition with ½ teaspoon of salt. Pasta must be cooked for at least 6 minutes.While pasta is being in cooking we will finish the preparation of the sauce: to add some wine and to lift the fire. We will continue the cooking until the liquid won't be lowered that is for at least 5 minutes. To this point we can unite the peas, we will always continue the cooking with the cover for 10 minutes. We drain pasta in a course dish, we mix the sauce together and we serve immediately.