Answer:
Steel cut oats have a coarser, chewier texture and nuttier flavor than rolled or quick oats. They also take longer to prepare, with average cooking times varying 15–30 minutes. However, you can soak steel-cut oats beforehand to reduce the cooking time.
Rolled oats, or old-fashioned oats, are oat groats that have gone through a steaming and flattening process. They have a milder flavor and softer texture and take much less time to make than steel-cut oats, as they have been partially cooked.A bowl of rolled oats takes 2–5 minutes to prepare.