MICHEL: Fill me in, please.
LORELAI: Jackson brought pea tendrils instead of Brussels sprouts.
Pea tendrils, also known as pea shoots, are the young leaves, flowers, stems, and vines of a pea plant. Pea tendrils are harvested before the pea pods are matured, and are therefore available in the spring and early summer. They have a similar flavour to peas.
Sookie complains that the pea tendrils are too delicate to eat with lamb shanks, and she is correct. They are more often eaten raw in salads, or lightly stir-fried and added to rice or pasta dishes.
The Annotated Gilmore Girls 