Steel-cut oats are small pieces of oat groats (husked oat kernels) that are toasted, while rolled oats are thinner, steamed, and rolled flat. Both are great additions to any meal.
Rolled oats are thin and starchy, with a warm flavor that does well in many recipes. Unlike steel-cut oats, they only take a few minutes to cook on the stovetop.
They can be creamy and buttery or perfectly toasty and nutty depending on how they are cooked, making them great for use in recipes like crunchy granola.
However, for those in search of a heartier, more satiating option, steel-cut oats are definitely the way to go. More akin to rice, they are thicker and have more fiber.
Because they need more time to take on moisture, steel-cut oats can take about 30 minutes on the stovetop. They can replace rolled oats in many recipes, but will require more prep.
The whole-grain nature of steel-cut oats also makes them perfect for use in various savory recipes if you treat them as you would different styles of rice.