Step 1

If you have a standard rice cooker with a simple on/off setting: Add the quinoa and water (plus salt, if desired) to the rice cooker.  Cover and turn on.  Cook for about 30 minutes.  Fluff the quinoa with a fork or rice paddle as soon as it's done cooking.

Step 2

If you have an advanced rice cooker with multiple cooking cycles: Add the quinoa and water (plus salt, if desired) to the rice cooker.  Cover and select the "Quick" cook setting (or similar setting; will vary by make and model).  Cook until the cycle completes, or about 30 minutes.  Fluff the quinoa with a fork or rice paddle as soon as it's done cooking.