Hi Mags, quick oats are often labeled simply as “rolled oats” in the UK. In the US rolled oats are larger and take at least 5 minutes to cook. Quick oats take about 1-2 minutes. If your oats take just a couple of minutes, they’re already quick cooking. In not, you can give them a quick pulse in the blender and you’ll have quick cooking oats. Breadcrumbs can certainly be used in meatloaf but the results will not be the same and the texture will be quite different.