Detailed Steps:
Cooking the Pasta:
Plunge the macaroni into a large pot of boiling salted water.
Cook for 8 to 10 minutes until slightly firm.
Drain and rinse with cold water to stop the cooking process.
Preparing the Vegetables: Dice
the bell pepper.
Slice the celery into thin rounds.
Finely chop the red onion.
Preparing the Sauce
