Taco 'bout biting off more than you can chew.

A Texas woman's lunch took an unexpectedly toothsome turn when she allegedly discovered a cow tooth in her taco, prompting a lawsuit against popular restaurant chain Torchy's Tacos over a bizarre ingredient the company has since confirmed was the real deal.

Nohemi Castillo claims she nearly swallowed the tooth while eating takeout from the chain's South Congress Avenue location in Austin on June 9, according to a lawsuit independently obtained by Fox News Digital and filed Oct. 13 in Travis County District Court.

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The order included the chain's "Democrat" tacos, according to the complaint, although a cow tooth was certainly not among the advertised ingredients.

Torchy's Tacos confirmed the unusual discovery in a statement to Austin TV station KVUE, saying its own investigation determined that the object was a cow tooth.

"Upon receiving the guest complaint, we conducted a thorough review and identified the item as a cow tooth," the company said. "This can occasionally happen when processing the meat, though it is quite rare."

The restaurant explained that its barbacoa comes from natural beef cheek sourced from a supplier, adding that it has taken steps to prevent similar incidents.

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"We have partnered with our supplier to reinforce their internal procedures to prevent this from happening in the future," Torchy's said.

Castillo's attorney, Scott Vasquez, told Fox News Digital that the company did not acknowledge to him that the object was a cow tooth until the story attracted local media attention in October, roughly four months after the incident.

Vasquez provided Fox News Digital with additional photographs showing the tooth beside a tape measure, offering a closer look at the sizable object Castillo claims she nearly swallowed.

Another photograph included in the court filing shows the object resting on aluminum foil beside what appears to be taco meat.

A witness statement provided by Castillo's attorney describes the moment an ordinary lunch with a colleague took an unpleasant turn.

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"As we were eating, I heard an ‘awww!’ When I turned to Nohemi, I saw her pulling something out of her mouth, she said, 'I think it's a bone,'" the witness wrote.

The colleague described Castillo examining the object while holding her left cheek before concluding that it appeared to be a tooth.

According to the lawsuit, Castillo was disgusted and sickened by the discovery and visited a doctor later that evening, where she received prescriptions.

The complaint alleges that she incurred medical expenses and experienced physical pain, mental anguish and other damages.

Castillo is suing Torchy's Tacos and Success Foods Management Group, which does business as Torchy's Tacos, alleging that the defendants failed to properly prepare, inspect and distribute the food before selling it to customers.

The lawsuit further alleges that Torchy's failed to adequately monitor its meat supplier and breached implied warranties that food sold to consumers is fit for consumption. It also alleges violations of the Texas Deceptive Trade Practices Act and federal food safety requirements.

Castillo contends that she would not have purchased the meal, or would have examined it more closely, had she known about the alleged defect.

She is seeking monetary relief of $250,000 or less, with any final award to be determined by a jury.

Vasquez also told Fox News Digital that he has become aware of other individuals reporting similar experiences with Torchy's since the story received attention, although those accounts have not been independently verified.

The attorney characterized the company's earlier responses as providing limited information while shifting blame and responsibility to others.

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Torchy's, meanwhile, maintains that it took the complaint seriously and conducted a thorough review.

"We are aware of the situation and take all concerns about our food seriously," the company told KVUE.

Torchy's did not immediately respond to Fox News Digital's request for comment.

A visitor wearing a Joe Biden mask turned a Texas homeowner’s doorstep into the setting for a bizarre banana snack, prompting a police response and a warning that pranks can lead to dangerous confrontations.

Doorbell camera video shows the unidentified person approaching a Watauga home wearing a mask resembling the former president and what appears to be a "FREEDOM" T-shirt similar to those associated with Charlie Kirk and Turning Point USA.

The person runs their fingers over the camera twice, then eats a banana through the mask before walking away.

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Watauga police told Fox News Digital that officers responded to a suspicious activity report at approximately 8:05 p.m. Oct. 18. After reviewing the homeowner’s video at the scene, officers found no evidence of a crime.

A search of the surrounding neighborhood turned up no sign of the masked visitor.

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The department said it is aware of social media posts describing similar sightings, but no additional reports involving the person have been made directly to police. Officers have not identified any related incidents.

While the doorstep appearance did not result in criminal charges, police cautioned that behavior intended to get a laugh could have serious consequences.

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"The department also reminds the public that behavior perceived as threatening can lead to dangerous confrontations, potentially resulting in serious injury," police told Fox News Digital.

Authorities urged residents to call police about concerning behavior instead of confronting individuals themselves.

"We also encourage everyone to exercise good judgment and recognize that behavior intended as a joke or prank can sometimes cause unnecessary concern for others," the department said.

The visitor’s identity and reason for the masked appearance remain unknown. Police said their assessment has not changed.

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"Based on the available information, our assessment remains unchanged: officers found no evidence that a criminal offense occurred."

A tourist was killed in a freak accident while visiting an architectural landmark designed by one of America's greatest architects last week, according to authorities.

Rogério Renato Mateucci, 55, was killed around 2 p.m. on Friday when strong winds blew a piece of roofing material off a roof — striking him in the head.

Mateucci, the rector of the Pontifical Catholic University of Paraná in Brazil, had been touring Taliesin West, a historic architectural landmark designed by famed American architect Frank Lloyd Wright.

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Taliesin West was built in 1937. It is now closed to the public, according to the Frank Lloyd Wright Foundation's website.

Joe Spector, CEO of the Frank Lloyd Wright Foundation, told Fox News Digital he was extending his "deepest condolences" to Mateucci's family and loved ones.

"The Scottsdale Police Department is aware of the incident, and no further details will be shared out of respect for privacy and to allow officials to complete their work," said Spector. 

"The property is closed to the public until further notice."

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A spokesperson for the Scottsdale Police Department confirmed the incident to Fox News Digital.

"The man was reportedly killed instantly and was pronounced dead at the scene by first responders," police said.

"He had been on a walking tour of the property with other people when the accident occurred."

The official added, "Detectives and crime scene personnel responded to investigate, but no foul play is suspected in this weather-related accident."

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In an Instagram post, the university announced Mateucci's death with "profound sadness."

The school canceled classes at three of its campuses on Oct. 17 and 19 and suspended administrative operations on Oct. 19 as it mourned his passing.

Vidal Martins, vice rector of the Pontifical Catholic University of Paraná, told FOX 10 Phoenix that strong winds blew a piece of clear roofing material into their path, striking Brother Rogério in the head.

Mateucci was reportedly eager to visit the property, given his interest in art.

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"He loved the arts and architecture," Martins said.

Martins called the incident "deeply, deeply sad."

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"It’s hard to understand, it’s hard to accept," he said.

Martins also said Mateucci had a lasting impact on the community through his efforts to improve the lives of those around him, per FOX 10.

"He was a very kind person, someone that takes care of everybody. He was a religious man," he said.

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Frank Lloyd Wright, who lived from 1867 to 1959, is widely regarded as one of the most influential architects in American history.

His most notable works include Fallingwater in Pennsylvania and the Solomon R. Guggenheim Museum in New York City.

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Taliesin West served as his winter home and architectural studio.

A passenger flight was forced to make an emergency landing shortly after takeoff following reports of a strange odor on board that left travelers fearing for their lives.

An American Airlines flight departed from St. Louis Lambert International Airport on Oct. 17, bound for Philadelphia, before turning back to the airport.

Gary Leff, a Texas-based aviation expert who founded the blog "View from the Wing," told Fox News Digital that engine oil entering an aircraft's air supply could potentially explain the odor, although the cause of the incident has not yet been confirmed.

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"When that happens, you can get smoke, you can get vibration, you can get loud noises. It can also wind up making people ill," Leff said.

FlightAware data reviewed by Fox News Digital showed that the plane was in the air for 34 minutes before landing back at St. Louis Lambert International Airport.

In a statement to Fox News Digital, American Airlines confirmed that the flight returned to St. Louis shortly after takeoff following a reported odor on board.

The airline said the aircraft landed safely and was taken out of service for inspection by its maintenance team.

The flight had already been delayed roughly two hours following a reported engine issue before passengers experienced trouble in the air, according to a couple who spoke to local outlet First Alert 4.

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The passengers — Tessa and Mark Springer of Waterloo, Illinois — were traveling to Pennsylvania for work when they heard a troubling noise coming from the back of the plane before takeoff.

"We heard just this really horrible noise coming from the back of the plane. It was like ... real loud buzzing, kind of [a] grinding sound," Mark Springer said.

Mark Springer said the pilot then announced there was a mechanical issue.

"The pilot comes back on and says, ‘Uh, there’s a problem with the engine on the airplane,’" the passenger added. "'We can’t get it started.'"

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After the delay, the plane finally departed. But about 15 minutes into the flight, passengers experienced a sudden jolt that sent them lunging forward, according to Mark Springer.

"All of a sudden, the plane just felt like it hit a ... like in a car, when you slam on your brakes. ... Everybody kind of lunges forward like this," he said.

"And then, maybe a minute later, the plane just kind of goes boom and drops. … All of the oxygen masks fall. And we just kind of looked at each other like, is this serious? Is this real?" added Mark Springer.

Tessa Springer recalled fearing for her life as the plane turned back toward the airport, telling First Alert 4 she was terrified she would die.

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She texted her children, "Problem on our plane, love you guys," per the outlet.

"I was like, we’re going to die," Tessa Springer said.

The couple said that once they landed, they evacuated the plane by jumping from its wing, with fellow passengers helping catch one another as they made their way to the ground.

"I don’t think I’ll ever be able to get on another airplane ever again," Mark Springer said.

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Despite the frightening ordeal, Leff of "View from the Wing" said a lengthy delay due to a mechanical issue does not necessarily indicate that a flight is unsafe.

"Part of that delay is diagnosing, part of it's addressing it and part of it's getting all the paperwork right and just doing all the final readbacks and rechecks to make sure that everything is safe for departure," Leff said.

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"A long delay in and of itself is not a safety concern," he added.

Leff also noted that aircraft are equipped with multiple safety systems and emergency procedures designed to protect passengers when problems arise.

"There are tremendous redundancies of systems and emergency procedures in place, such that the cockpit crew immediately reacted, responded and got everyone on the ground and off the aircraft to safety," Leff said.

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"It's certainly not something that you want to go through — but even when something goes wrong, that doesn't mean that things end badly at all," he added.