Boil pasta in plenty of salted water. When pasta is cooked, cool under running water and strain. In a large frying pan heat some oil and fry the onion and garlic. Add the minced meat and continue cooking on low heat for about 8 minutes. Add the tomato paste and the chopped fresh tomatoes. Continue cooking on a low heat for a further 20 minutes. Preheat oven Gas Mark 5/1900C. Put the pasta either in a large bowl or else you can use the same pan where you had boiled it. Add meat sauce, eggs, seasoning and cheese. Mix well, taking great care so as not to break up the pasta. Line a pie dish with pastry. Fill with pasta mixture and cover again with pastry. Egg wash, sprinkle some sesame seeds and cook in a medium to hot oven for about 50 minutes.