Boil or bake beets in the oven. When it cools down a bit, clean it. It is not worth cooling completely; it is easier to clean when warm, and the taste only benefits from this.
Prepare salad dressing. Start with it so that it sits while you chop the beets and cheese. To do this, mix olive oil, lemon juice, Dijon mustard, sugar, salt and pepper. Before dressing the salad, taste and adjust the taste if necessary. The tastes of the components should not interrupt each other.
Cut the beets into cubes and crumble the feta cheese. Use your hands to tear the arugula leaves. The size of the cut is a matter of personal taste. To make the salad look more impressive, all components should be approximately the same size. In our version, the cut is medium. Mix the prepared ingredients, add dressing, sprinkle nuts on top.
Serve the salad in portions on white plates; this will highlight its color. The dressing can also be added in batches. Top with nut kernels.