Muesli, Old Country StyleMuesli, Old Country Style Old Country Style Muesli A Cold or Hot Whole Grain Cereal, Plus Omega 3 Rich Flaxseed. All Natural. Friend of the heart. Originally developed in the late 1800's by a Swiss nutritionist, Muesli is a delightful cereal made from a blend of whole grains, dried fruits, nuts and seeds. Bob's Red Mill is dedicated to providing a highly nutritious whole grain cereal that's very tasty, so we've combined whole grain rolled oats, wheat,