The mystery seeds from last week were...
Nasturtium seeds (Genus Tropaeolum)!
These colorful plants were originally from South America, but are now grown worldwide.
Some people use nasturtium flowers in salads (make sure to use organically-grown). They have a spicy flavor.
When looking up information on nasturtiums, I found some websites with recipes for pickling the seeds. Does anyone know if this is real?