Bolognese Sauce: Place the ground beef in a bowl and add all the ingredients listed except the oil. One, without kneading too much. Shape into balls about 1-1 / 2 "in diameter and fry in oil until golden brown. Leave in skillet.
Cook pasta in boiling salted water for 9 min. Reservation. For the bechamel: In a saucepan, melt the butter. When it is melted, add the flour and mix with a few rods. Cook this mixture for 2 minutes so that it takes on a more toasted tone, but not too much.
Put water with a little salt in a pot and bring to a boil. Add the pasta and cook. After 2 minutes of cooking, add the broccoli florets and cook with the pasta for about 8 more minutes.