A list my family recently put together for this problem:
Jade Snow Wong
Fifth Chinese Daughter

Anya Seton
Katherine (romance, but not the kind you're talking about)
others

Mary Renault (historical novels set in ancient Greece)
The Last of the Wine
The King Must Die
The Bull from the Sea
others

Mary Stewart's Merlin series:
The Crystal Cave
The Hollow Hills
The Last Enchantment
The Wicked Day
The Prince and the Pilgrim


Beverly Cleary
My Own Two Feet (her autobiography)

Andy Mulligan
Trash
others

Marcel Pagnol
My Father's Glory
My Mother's Castle

Margaret Mitchell
Gone With the Wind


Jessamyn West
The Friendly Persuasion
The Massacre at Fall Creek
others

Witi Ihimaera The Whale Rider

Michael Morpurgo War Horse

Daphne deMaurier
Rebecca
The Scapegoat
The King's General
others

Jack Finney
Time and Again
From Time to Time
About Time
Invasion of the Body Snatchers
others

Alfred Toombs
Raising a Riot


Jean Merrill
The Pushcart Wars
others

Robert Cormier
The Chocolate War
others

S.E. Hinton
The Outsiders


T. H. White
The Once and Future King


Richard Peck
Paul Zindel

Maxine Hong Kingston
The Woman Warrior, Memoirs of a Girlhood Among Ghosts

Ray Bradbury
The Illustrated Man
Fahrenheit 451
others

Natalie Babbitt
Tuck Everlasting
others

Rod Serling
Stories from the Twilight Zone
others
also: not a book, The Big Tall Wish: The Twilight Zone Radio Dramas

John Steinbeck
The Grapes of Wrath

Ernest Hemingway
lots, but you might be a little young.

Ken Follett
Pillars of the Earth
World Without End
His other books are spy novels and kind of gory.

Amy Tan
The Joy Luck Club
others

Chaim Potok
The Chosen
The Promise
My Name is Asher Lev

C.S. Lewis
The Lion, the Witch, and the Wardrobe (#1 of Chronicles of Narnia series)
others

Ursula K. LeGuin
anything

Tolkein
The Hobbit
Lord of the Rings series