Add the quick oats, water or milk, and salt in a medium saucepan over medium-high heat. Bring the mixture to a simmer, stirring occasionally, and once it simmers, reduce the heat to low.
Cook for 3 minutes, stirring from time to time, until the desired consistency is reached. Turn off the heat. For a richer texture, cover and let the oats sit in the saucepan for 1 to 2 more minutes.
Serve:
Serve the oats in a bowl, topped with your favorite toppings.
Notes
Using milk instead of water will yield a thicker and creamier bowl of instant oats.