This cereal was originally developed by a Swiss nutritionist at the end of the 19th century, and remains one of the world’s most popular cereals. Old Country Style Muesli is a tasty blend of rolled oats, wheat, rye, triticale, barley, almonds, date crumbles, raisins, sunflower seeds and walnuts. This cereal can be served hot or cold, eaten as a nutritious snack, mixed with yogurt or other cereals, or used in baking.