According to the Wikipedia a frittata, very similar to quiche and strata, is «an
egg - based Italian dish enriched with
additional ingredients such as meats, cheeses, vegetables or pasta and such ingredients are combined with the beaten
egg mixture while the
eggs are still raw rather than being
laid over the
egg mixture before it is folded, as in a conventional omelette.
A family of neuropeptide genes which includes the gene encoding ELH along with two
additional genes encoding the A and B peptides thought to initiate the
egg -
laying process has been isolated and their nucleotide sequence has been determined.