The green bean casserole on millions of Thanksgiving tables began in 1955 as a six-ingredient dish called “Green Bean Bake.” It came from a single home economist working in Campbell’s test kitchen in Camden, New Jersey.
That original recipe card now sits in the archives of the National Inventors Hall of Fame in Akron, Ohio. Here is how the dish started, what went into it and how it became a holiday fixture.
The Cook Behind the Casserole
According to Smithsonian magazine, Dorcas Reilly was a supervisor in the Campbell’s test kitchen when she created the dish in 1955 for an Associated Press feature. Wikipedia’s entry on Dorcas Reilly says she was born Dorcas Lillian Bates in 1926, studied at Drexel University and earned a home economics degree in 1947.
She joined the Campbell’s Test Kitchen in 1949 as one of its first full-time employees, according to the same entry. Over the years she developed hundreds of recipes, including a tuna-noodle casserole, porcupine meatballs and a Sloppy Joe variation called the “souperburger.”
Reilly left the kitchen in 1961 to raise her children, then returned to manage it and retired in 1988. She died on October 15, 2018, at age 92.
Wikipedia says she earned the nickname “Grandmother of the Green Bean Bake.” The dish came out of an era when home cooks leaned on canned goods, and a look at once-common Thanksgiving traditions from the 1950s shows how many other customs from the same decade have since faded while this one stayed.
The Six Ingredients in the Original
The first version was called Green Bean Bake and used six ingredients, according to Smithsonian. Cooks needed little beyond a pantry and a can opener.
- Campbell’s cream of mushroom soup
- Milk
- Soy sauce
- Black pepper
- Green beans
- Fried onions
The dish bakes for about 25 minutes, Smithsonian reports. Wikipedia’s green bean casserole entry says the original core ingredients were green beans, cream of mushroom soup and crisp fried onions, and that the 2020 version of the recipe also includes milk, soy sauce and ground black pepper. Cooks who like a pared-down pantry may enjoy these clever kitchen tricks for home cooks on Frenzhub.
How a Soup-Can Recipe Became a Thanksgiving Staple
The dish was first marketed as an everyday side, according to Wikipedia. It became a Thanksgiving staple in the 1960s, after Campbell’s put the recipe on the can label, and Smithsonian says sales took off once the recipe was printed on soup cans. Budget-minded readers can find related pantry ideas in Frenzhub’s list of 15 poor people foods that even the wealthy eat.
The numbers behind it are large. Campbell’s estimates that about 40 percent of its cream of mushroom soup sales go into the dish. As of 2020, the company estimated it was served at 20 million Thanksgiving dinners a year, and that its online recipe was viewed 4 million times each Thanksgiving Day, according to Wikipedia.
A Fox News obituary in 2018 described it as the most popular recipe ever to come out of the company’s corporate kitchen, and noted that Reilly had marked the dish’s 50th anniversary in a 2005 Associated Press interview. Those who grew up with canned-soup cooking may recognize the era from 15 foods most boomers loved, and the dish sits comfortably alongside the casseroles that defined American family dinners.
Why Condensed Soup Made It Possible
The dish depends on a product that was already a household staple. The Campbell Soup Company entry on Wikipedia credits the chemist John T. Dorrance, who joined the company in 1897, with developing a commercially viable way to condense soup by halving its water content. He became president in 1914.
Wikipedia adds that the company’s Plant No. 2 in Camden, which shut down in 1980, produced cream of mushroom soup among other products, the same soup that sits first on the casserole’s ingredient list.
A Recipe Card Goes to the Hall of Fame
In November 2002, Reilly, representing Campbell’s, donated the original recipe card to the National Inventors Hall of Fame in Akron, Ohio, according to Wikipedia. The donation was followed by a meal featuring the dish. Smithsonian notes that her handwritten original is in the hall’s archives.
Wikipedia’s page on the National Inventors Hall of Fame describes the organization that holds it. Campbell’s itself, according to the Campbell Soup Company entry, is headquartered in Camden, where the dish was created, and was started in 1869 by Joseph A. Campbell and Abraham Anderson.
Newer Takes on the Classic
Wikipedia notes that newer recipes use fresh beans, a homemade cream sauce and fresh mushrooms in place of the canned soup. The entry also describes a version by Cassandra Peterson that replaces the soup with processed cheese and the onions with potato chips.
Even so, the six-ingredient original remains the reference point. It is a plain, quick recipe that uses a handful of shelf-stable items, which helps explain why it spread from a single test kitchen to so many homes.
What to Know Before Making It This Year
For cooks planning a Thanksgiving menu, the original is easy to scale because it relies on a short list of pantry items. Smithsonian puts the baking time at about 25 minutes, which leaves the oven free for other dishes during a crowded holiday cooking window.
The history also offers a useful reminder. A dish that now feels like an old family tradition has a documented start date, a named creator and a card in a hall of fame, all tied to one test kitchen in Camden in 1955.
This article was produced with AI assistance and edited for accuracy against the sources linked above.
Image: Famartin – CC BY-SA 4.0/Wikimedia Commons
