Roughly chop the nuts and spread them out on a baking tray, on a separate baking tray spread out the old fashioned rolled oats. (the one with the bigger flakes)
Pop them into the oven, the oats should be done in 7 to 10 minutes and the nuts should be done in 10 to 15 minutes.
Throw the un-roasted quick rolled oats (the smaller flake) together with the raisins and the roasted nuts and oats into a big bowl. Then mix them well together and leave to cool before you transfer the muesli into jars.
Serve about 50 grams (that's one serving) of the muesli together with milk or yoghurt in a bowl for breakfast. If you want you can even sprinkle some sugar of your choice on top or mix in some honey if you have a sweet tooth.
Notes
The reason I like to use two types of rolled oats is because of the different textures they provide. The smaller flaked oats soak up more of the milk which results in a softer bite, and the bigger flaked oats especially when roasted don't take up as much milk, which results in more of a bite. Together with the chewiness of the raisins and the crunch of the nuts, it results in a myriad of textures.If you can't find two types of rolled oats, just use one type and roast half and leave half unroasted.