This Mushroom Green Bean Casserole is a national favorite in the United States. It was invented by a Campbell Soup employee in 1955 and has been popular ever since.
Mushroom Green Bean Casserole with French Fried Onions is a Northern favorite.
We call this favorite holiday recipe Northern Mushroom Green Bean Casserole because it’s the one I grew up with and I’m from the North (Wisconsin). Don likes the Southern version, of course, since he’s a Southern boy. Two of our children like Momma Betty’s Green Bean Casserole (Southern recipe), and the other two like this recipe.
Mushroom Green Bean Casserole Invented by Campbell Soup Employee
Dorcas Reilly, the Campbell Soup employee who invented this casserole, died in October 2018 at the age of 92. The original recipe card from 1955 was donated in 2002 to the National Inventors Hall of Fame. How cool is that?
I like both green bean casseroles equally well, but now that I can’t eat cheese or gluten, I don’t eat either. This Mushroom Green Bean Casserole recipe is super easy. I just looked at the container of French’s Original French Fried Onions (affiliate link), and the recipe is right on the box.
Canned Soup in a Recipe?
This is the casserole that my family of origin always served at Thanksgiving and Christmas. There are only two recipes with canned soup that I ever make. This one and Baked Pork Chops, which I think are also super good and I consider a comfort food.
If I want to eat this casserole, however, I will also have to modify it. It contains both milk and flour (in the soup and the topping). And as long as I’m updating it, I think I’ll try it with caramelized onions. That sounds scrumptious. Next year…
What You Need
You will need a knife, cutting board, measuring cups and spoons and a casserole dish. I usually use a Pyrex loaf pan (affiliate link) for Mushroom Green Bean Casserole, but a pretty baking dish like this heart-shaped Le Creuset Casserole Dish (affiliate link) would be fun.
Mushroom Green Bean Casserole with French Fried Onions Recipe
Mushroom Green Bean Casserole with French Fried Onions
Holiday Mushroom Green Bean Casserole, just like Grandma used to make.
- 1 package 12 ounces frozen French Green Beans (the thin sliced kind)
- 2 cans Campbell's Cream of Mushroom Soup
- 1/2 cup chopped onion optional
- 1/2 cup milk
- 1 small can French's French Fried Onion Rings
Combine the green beans, soup, onion and milk and pour it into a 3-quart baking dish.
Top with French fried onion rings.
Bake at 350F degrees for 45 minutes until hot and bubbly.
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Recipe Nutrition Information
This recipe is NF, SF, EF, V, VG*
The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.
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GF = Gluten free | DF = Dairy free | NF = Nut free | SF = Soy free | EF = Egg free | CF = Corn free | V = Vegetarian | VG = Vegan
Note: If you have serious allergies or sensitivities, to be considered free of these allergens, you need to use products specifically marked “gluten free,” etc. There can be cross-contamination in facilities.
This recipe was originally posted on Recipe Idea Shop November 2, 2018 and updated November 19, 2020.