Tomatoes with mashed fava beans

For 4 people:
4 tomatoes - 200 g of blanched and peeled, shelled and blanched fava beans - 200 g of garlic - fresh oregano - basil - thyme - a spring onion - lemon - margarine - extra virgin olive oil - salt - pepper

Cut the tomatoes in half, remove the seeds, toss with olive oil, a pinch of oregano powder and put in the oven at 200° for 15 '.
Meanwhile, puree the beans with a clove of garlic, fresh oregano, oil, salt, pepper, getting mashed fairly consistent.
Cut into slices a spring onion and let it simmer in a small amount of margarine, salt, pepper, thyme, then blend it with the addition of 60 g of oil, lemon juice and basil.
Baked tomatoes, arrange in serving dish and cover with mashed beans; toss with the sauce of spring onion and serve with a garnish as desired (we used plumes of fresh onion).