It is Bella Mama for us - it is our favourite restaurant in Calis - the penne veniziana is superb, likewise the ravioli and lasagne. Always our first and last place to go when we are over. it is also such good value for lunches. We have tried Casa de Mama but found the meals too big (we are not big eaters) and the tables too close together. We have never been rushed out of Bella Mama and have always received a courteous and friendly welcome. (They are also one of the few places that still have my favourite wine, Moskado).