To prepare the summer cannelloni with vegetables and ricotta, start by making the béchamel: melt the butter in a saucepan over low heat (1), then add the flour (2) and mix with a wooden spoon until ...

Preheat oven to 350 degrees. In a large pot of salted water, parboil cannelloni. (Parboiling is partially cooking the noodles in boiling water; they will finish cooking when baked). Meanwhile, cook ...