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Cheesy Mushroom and Onion Green Bean Casserole! This classic dish becomes a new family favorite that everyone at your Thanksgiving table will love – Cheesy Mushroom and Onion Green Bean Casserole!

mushroom and onion green bean casserole served in a large baking dish

Cheesy Mushroom and Onion Green Bean Casserole

With Thanksgiving coming up, it also brings with it memories of the past. Memories of family get-togethers with lots of laughs and good food!

One of my favorite memories was gathering around the table on Thanksgiving with my mom and dad, grandparents and aunts, uncles, and cousins. I remember that good kind of chaos of everyone talking at once, passing plates and rolls around the table before we all dug into Pumpkin and Pecan pies. Those are the kind of memories that never leave you.

One of our favorite dishes was the Classic Green Bean Casserole. You know, the one with green beans, cream of mushroom soup, and french fried onions on top?!

It was the best! It was always on our table and on most of America’s table. It’s still a favorite dish for the holidays. But, this year I wanted to create a special little twist on this classic recipe, and I think I’ve hit it out of the park on this one!

bowl of mushroom and onion green bean casserole

Cheesy Mushroom and Onion Green Bean Casserole To Enjoy

This recipe is easy to make, uses the classic ingredients plus adds in sautéed mushrooms and onions along with a slightly spicy pepper jack cheese. It’s soooo good!

These subtle twists give it a not so subtle flavor. The sautéed mushrooms and onions infuse the green beans with a delicious flavor while the pepper jack cheese kicks it up a notch with a bit of spiciness.

ingredients to make mushroom and onion green bean casserole

Ingredients For Green Bean Casserole

See the recipe card below this post for ingredient quantities and full instructions.

  • Campbell’s® Condensed Cream of Mushroom Soup
  • Milk
  • Ground black pepper
  • Salt
  • Canned Green Beans
  • Crispy Fried Onions
  • Sweet onion
  • Mushrooms
  • Butter
  • Olive oil
  • Shredded pepper jack cheese
steps to make mushroom and onion green bean casserole

How To Make Cheesy Mushroom and Onion Green Bean Casserole

  1. Prepare: Preheat oven to 350 and prepare a casserole dish.
  2. Mix Together: Stir Campbell’s® soup, milk, salt, and black pepper together in a bowl
  3. Sauté Ingredients: Add the butter and olive oil to a sauté pan over medium heat. When hot, add the mushrooms and onions and cook until soft and golden. Remove from heat.Add green beans, onions and mushrooms to bowl with soup mixture. Mix well. Add in 1 cup of pepper jack cheese and stir well.
  4. Assemble: Place in 3 casserole dish, uncovered.
  5. Bake: Bake at 350°F, uncovered, for 25 min. or until the bean mixture is hot and bubbling. Stir the bean mixture. Sprinkle with french fried onions and the remaining 1/4 cup cheese. Bake for 5 min. or until onions are golden brown.
wooden spoonful of mushroom and onion green bean casserole

More Casseroles To Enjoy

Cheesy Mushroom and Onion Green Bean Casserole

This classic dish becomes a new family favorite that everyone at your Thanksgiving table will love. It will be a must every holiday.
2.80 from 5 votes
Author: Kasey Schwartz
Servings: 12
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes

Ingredients  

  • 2 cans 10.5 oz. each Campbell’s® Condensed Cream of Mushroom Soup
  • 1 cup milk
  • 1/2 tsp ground black pepper
  • 1/2 tsp salt
  • 4 cans 14.5 oz. each any style Del Monte® Green Beans, drained
  • 2 2/3 cups French’s® Crispy Fried Onions
  • 1 small sweet onion
  • 1 cup mushrooms
  • 1 tbsp butter
  • 1 tbsp olive oil
  • 1 1/4 cup shredded pepper jack cheese

Instructions 

  • Stir Campbell’s® soup, milk, salt, black pepper together in a bowl
  • Add the butter and olive oil to a sauté pan over medium heat. When hot, add the mushrooms and onions and cook until soft and golden. Remove from heat.
  • Add green beans, onions and mushrooms to bowl with soup mixture. Mix well.
  • Add in 1 cup of pepper jack cheese and stir well.
  • Place in 3 qt casserole dish, uncovered.
  • Bake at 350°F, uncovered, for 25 min. or until bean mixture is hot and bubbling. Stir bean mixture. Sprinkle with french fried onions and the remaining 1/4 cup cheese.
  • Bake for 5 min. or until onions are golden brown.
Keyword: green beans, mushroom and onion green bean casserole
Did you make this recipe?Mention @kasey_allthingsmamma or tag #allthingsmamma!

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About Kasey Schwartz

Hi, I’m Kasey, Founder of All Things Mamma – where I am dishing up family favorite recipes that are easy to make with simple, everyday ingredients. Plus – tips and tricks for living your best life!

Comments

  1. Gonna make this, but the added twist of making my own mushroom soup!!

  2. Rose Martine says:

    I enjoy trying new dishes to serve my family. This looks absolutely delicious.

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