Rolled oats and instant oats are made from the same grain, but processed differently.
Whole oat grains steamed and flattened with rollers. Cook in 5-10 minutes.
Cut even finer and pre-cooked slightly. Cook in 1-2 minutes.
If you have a few extra minutes and prefer a heartier texture, go with Classic Rolled Oats. If mornings are rushed, Quick Cook Oats is the better fit. Both are equally nutritious.