pesudo_intellectual is close to correct about the relationship between granola and muesli, but in my experience (restricted to the USA) they are different entities. Muesli has most of the same ingredients as granola (dried fruit, nuts, and rolled oats, rye, or barley). However, Granola also has oil and liquid sweetener, such as honey or corn syrup added, and is baked. This is why it's crunchy and forms nuggets. Muesli is uncooked and unsweetened, so it's softer and finer-grained, no pun intended.