Wash spinach-drain. Chill to crisp. Combine oil, sugar, vinegar, onion, salt & mustard. Beat or blend in blender until dressing becomes thick and syrupy and sugar is thoroughly dissolved.

Tear spinach in bite-sized pcs. And place in lge. Salad bowl. Crumble Beef Frye and add with chopped eggs. Pour dressing over salad and let stand abt. 1/2 hr. Toss and garnish w/egg slices.