Yummy.

Spinach, whether bunched or prepackaged, should be washed very well since the leaves and stems tend to collect sand and soil. Before washing, trim off the roots and separate the leaves. Place the spinach in a large bowl of tepid water and swish the leaves around with your hands as this will allow any dirt to become dislodged. Remove the leaves from the water, empty the bowl, refill with clean water and repeat this process until no dirt remains in the water (usually two to three times will do the trick). Cut away any overly thick stems to ensure for more even cooking

The animated Popeye shorts were the first stories to suggest that Popeye's enormous strength came from a love of spinach; in the Thimble Theatre strips, Popeye did say he owed his strength to spinach, but was rarely seen actually using it until the cartoons.

The 1954 Popeye cartoon Greek Mirthology depicts the fictional origin of spinach consumption in Popeye's family. Popeye's Greek ancestor, Hercules, originally sniffed garlic to gain his supernatural powers. When the evil Brutus removes the scent of the garlic using chlorophyll (an obvious incongruity), Hercules ends up getting punched into a spinach field, and, upon eating the leafy green substance, finds it empowers him many times more than garlic.

Thanks for the background information. I never knew any of that.