Zest orange and then peel removing all skin and with pith. Cut into ¼ inch slices.
Mix oil, vinegar, sugar, zest and water in bottle with lid. Shake to mix.
Slice oranges and add with beets and oranges to re-sealable plastic bag, pour dressing into bag, seal and refrigerate for up to 2 hours
To serve arrange lettuce leaves on plate and top with beets, onions, and oranges.