Chick Lit author extraordinaire. Probably most well known for her The Princess Diaries series, which was adapted for a Disney movie. Has written a number of series for teens and adults and recently began her first series for children.
Series by Meg Cabot:
The Princess Diaries series: Her breakout success. The novels focus on teenager Mia Thermopolis who seeks solace in her diaries upon finding out that she is actually the Princess of Genovia. Adapted into movies starring Anne Hathaway and Julie Andrews.
The Mediator series: Focuses on Suze Simon, a young woman who is a mediator, meaning she can interact with ghosts. She takes it upon herself to help them cross to the other side. Trouble arises when she falls in love with a ghost.
1-800-WHERE-R-YOU: Normal teen Jessica Mastriani's life is turned upside down when she is struck by lightning. She can now look at pictures, go to sleep and when she wakes up she knows exactly where the person in the picture is. Now Jess is attempting to use her power for good while avoiding working for the US government. Became the Lifetime series Missing. Being re-issued as Vanished.
All-American Girl: Samantha Madison finds herself a national heroine when she saves the President from an assassination attempt. And then she finds herself falling in love with his son. Has a sequel entitled Ready or Not.
Queen Of Babble series: The main obstacle in Lizzie Nichol's love life is that she just cannot for the life of her keep a secret!
Airhead: Brainiac Emerson Watts loses her body in a freak accident and has her brain transplanted into supermodel Nikki Howard's body. Now she has to deal with fame, the shallow lifestyle she hates and a conspiracy behind the imposing Stark Enterprises.
Insatiable: A modern re-telling/sequel to Bram Stroker's Dracula.
The Heather Wells Mysteries: A series of three books about Heather Wells, a former child Idol Singer, whose label dropped her. She now works at a university as a dorm administrator. In every book, someone ends up dead, and Heather investigates while dealing with her crazy co-workers, annoying, cheating ex-boyfriend (also a famous pop star) a police officer who believes she's nothing but trouble, and her huge crush on her roommate/landlord/brother of her former flame.
The Abandon Trilogy: In a modern retelling of the myth of Persephone, teenager Pierce Oliviera dies and is chosen to become the consort to the Lord of the Underworld, John Hayden. Pierce manages to escape back to the realm of the living but something keeps drawing her back to John. Not helping is the presence of the Furies, evil souls who wants nothing more than to make John suffer and hurt her in the process.
Standalone novels by Meg Cabot:
Teen Idol: Jenny Greenley, known for being her school's Messiah, guides movie star Luke Striker around her school as he studies for a role. Meanwhile, she learns about herself.
How to be Popular: The one thing Steph Landry wants more than anything is to be popular. And she finally gets a chance when she stumbles upon a self-help book called How to be Popular.
Pants on Fire or Tommy Sullivan is a Freak: Katie Ellison is a Consummate Liar. She lies to her friends, she lies to her boyfriend(s) and she lies about not knowing anything about Tommy Sullivan or why he mysteriously left town four years ago. Which is quite the problem, since Tommy Sullivan is back in town.
Jinx: Misfortune has followed Jean Honeychurch all her life - which is how she earned the nickname Jinx. And now her parents have shipped her off to New York City to stay with relatives - including her sophisticated cousin Tory - until the trouble she's caused back home dies down. But trouble is part of Jean's life, especially because she might be a witch.
Works by Meg Cabot with their own trope pages include:
Adaptation Decay: Hilariously lampshaded in the 1-800-WHERE-R-YOU books. Jess comments on the TV show and talks about how it has virtually no basis in truth and many characters in the last book mention that they've watched the TV show.
Also mentioned in-universe a couple of times in The Princess Diaries, where Mia mentions how inaccurate the movies are (though it's mainly the second one that she has a problem with).
Looking for Love in All the Wrong Places: Lizzie a thousand times Lizzie, who's repeatedly falls for sophisticated, European guys Andy and Luke but finally realizes she's in love with long-time friend Chaz.
Same Story, Different Names: While her plots tend to be very different, her characters tend to be very similar to one another, especially her main characters.
A common complaint for How to Be Popular is that it is basically a less interesting retread of Teen Idol.
Her two historical YA novels, Nicola and the Viscount and Victoria and the Rogue are essentially two (slightly, see above) different main characters dropped into identical plotlines: Orphan girl arrives in London Society, falls for and gets engaged to a guy who eventually turns out to be interested in her only for her money/property, breaks off the engagement, gets kidnapped by his relations who then try to force the marriage, but then eventually manages to escape and be rescued by the true love interest. Both girls initially write off the men who eventually become their true love interests as being insufferable jerks, only to eventually realize they've misjudged them and fall hard. While the precise character and event details are different, it's basically the same story with different window dressings.
Rich Suitor, Poor Suitor: Played with in Queen of Babble between Luke and Chaz. They're both rich trust fund kids but Luke is a European Prince and wealthy banker while Chaz is a phd student wanting to be a Philosophy professor. He even tells Lizzie straight out that considering his poor prospects he wouldn't blame her for choosing Luke.
Romantic False Lead: Taken to comical extremes in Queen of Babble. Andy is the obvious false lead to the charming Luke, however in the sequels Luke is the false lead to Chaz, who has been around since the beginning.
Scrapbook Story: Her Boy books for adults, which are written entirely in e-mails, letters, and journal entries.
Shaped Like Itself: The standalone book How to be Popular, which is sometimes mistaken by people as an actual guide on how to be popular. (The title actually refers to the self help book the protagonist follows in her efforts to gain popularity.)
Shipper on Deck: Jess from 1-800-WHERE-R-YOU series ships Special Agents Johnson/Smith.
Single Woman Seeks Good Man: Lizzie in Queen of Babble who falls for both Andy and Luke after they go on about wanting to become teachers and doctors. They both turn out to be jerks, and she eventually falls for her best friend Chaz.
Victorious Childhood Friend: Very frequent. A notable example is in the Queen of Babble series where the first book is all about the protagonist's romantic relationship with attractive, sophisticated, wealthy Luke Brandon. By the end of the third book she has dumped him in favor of her best friend's ex and longtime friend, Chad. As the series progresses it makes sense, but you wouldn't have guessed that was how the series would turn out from the first book.