The TSA said security at the Northern California airport confiscated the 8-1/2-inch knife, but allowed the woman to board her Alaska Airlines flight.
"The woman said she had made the enchiladas over the weekend and she really didn't know how the knife got into the bag," TSA spokesperson Nico Melendez told KTVU.
“Looks like homemade enchiladas,” Melendez tweeted, along with two snapshots.
Initially, the tweets and photos erroneously stated the incident occurred at the Oakland airport. A correction was re-tweeted a few hours later.
The TSA could pursue penalties of up to $10,000 against the passenger for carrying the concealed weapon.
The TSA website gives regulations for anyone wishing to transport knives on aircrafts.