Trim off the crusts and soak the bread in the milk for 5 minutes, then squeeze dry. Using your hands, mix the bread with the meat, garlic, nutmeg, parsley, egg, salt and pepper. Form the mixture into small balls, the size of a walnut, and roll in the flour.
Chop the onion. Cut the green pepper into strips, discarding the seeds.
Heat the olive oil in a heavy-based fry pan, and co