Instant Pot Macaroni Salad is made with macaroni pasta that you cook quickly in the Instant Pot, then mixed with crunchy vegetables, cheese, and a creamy dressing to make a perfect summer salad in a flash.
Pour macaroni into the Instant Pot. Pour in the water.
Place the trivet on top of the noodles. Set the 2 eggs on the trivet.
Close the lid and set the valve to sealing. Press the Pressure cook or Manual button and set the cook time to 5 minutes. Allow a 5-minute natural pressure release, then release remaining pressure.
Open the lid. Transfer the eggs to a bowl of ice water to cool. Remove the trivet.
Drain the pasta and run it under cold water for 2-3 minutes, until cooled. Allow it to cool and drain completely.
Transfer the pasta back into the dry inner pot.
Peel and cube the eggs.
Add the egg, peas, bell pepper, celery, and cheese to the pot.
Mix the mayonnaise, vinegar, Dijon mustard, salt and pepper in a bowl until smooth and then add it to the pot. Stir to combine.
Refrigerate the salad until well chilled before serving. Garnish with green onion.