Which company employed Dorcas Reilly when she created green bean casserole in 1955?

Dorcas Reilly was employed by the Campbell Soup Company when she created green bean casserole in 1955.

Reilly worked in Campbell's Test Kitchen and developed the recipe while in the company's home economics department. The assignment called for a quick, easy dish made with ingredients many households already kept on hand. The original recipe combined green beans, condensed cream of mushroom soup, milk, soy sauce, black pepper, and crisp fried onions.

The dish was initially called “Green Bean Bake,” and its use of a canned soup reflected the convenience-food cooking popular in the 1950s. The crunchy fried-onion topping helped distinguish it from an ordinary vegetable casserole. Campbell's later printed the recipe on soup-can labels, helping move it from a company test kitchen into American home cooking.

Reilly began working at Campbell's in 1949, created hundreds of recipes, and eventually supervised the home economics department. In 2002, she and Campbell's donated the original recipe card to the National Inventors Hall of Fame. The casserole became especially associated with Thanksgiving, although it was originally promoted as an everyday side dish.