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Home » Casseroles » Green Bean Broccoli Casserole (With Frozen Vegetables)

Green Bean Broccoli Casserole (With Frozen Vegetables)

1 hour
broccoligreen beans
Posted:4/7/21
Updated:11/4/21
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This comforting Green Bean Broccoli Casserole (With Frozen Vegetables) comes together quickly with the help of frozen vegetables, canned mushroom soup, cheddar cheese, and crunchy Ritz crackers. It’s a delicious and creamy side dish you can enjoy for the holidays or weeknight dinners.

spoon on top of green bean and broccoli casserole with melted cheese and ritz crackers on top.

Vegetarian broccoli green bean casserole 

I absolutely love making green bean casseroles for the holidays. This classic recipe is so creamy and comforting, and I love the crunch from the crispy crackers on top. But what I love even more is adding fun and nutritious twists to the traditional recipe!

Whether it’s made with chopped potatoes or cabbage, there’s so much room to play in the traditional recipe. That’s why I got so excited to add broccoli this time around!

I love using broccoli in Chinese Chicken and I’ve even made a broth out of broccoli leaves so adding frozen broccoli into this Green Bean Broccoli Casserole was no surprise. This extra twist gives this easy casserole much more nutrition and a great texture. The best part? Both the green beans and broccoli are frozen!

casserole dish on table with green bean broccoli casserole.

Think of frozen vegetables as a secret weapon. Instead of washing, peeling, and chopping fresh veggies (that may go bad any day now), frozen vegetables are inexpensive and just as nutrient-dense. They make this recipe not only easier but also budget-friendly.

Turn to this easy broccoli casserole with frozen vegetables the next time you need a holiday-ready side dish. It goes so well next to an Oven Roasted Chicken or a hearty Homemade Salisbury Steak!

How to make broccoli green bean casserole

Grab your frozen veggies and place them in a baking dish.

frozen green beans and broccoli in casserole dish.

In a separate bowl, mix the mushroom soup, milk, cheddar cheese, salt, and pepper together.

hand sprinkling cheese into bowl with purple nail polish on.

Pour it over the frozen veggies and stir.

cream of mushroom soup and cheese mixture being poured on top of vegetables.

Sprinkle the crumbled Ritz crackers all over the top of the casserole.

hand holding a stack of ritz crackers.

Next, add the butter knobs on top of the crackers and then bake!

cubes of butter on top of casserole.

The casserole is ready to eat when the veggies are thawed and it’s hot in the middle.

golden brown baked green bean and broccoli casserole.

Can I make this casserole in a crockpot?

Yes! The broccoli casserole can easily be made in your crockpot or slow cooker. Just follow these easy steps:

  1. Add all of the casserole ingredients (except for the crackers and butter) to the crockpot and stir together. 
  2. Cook on low for 5 to 6 hours or until the frozen vegetables are thawed and warm. 
  3. Top the casserole with the crumbled crackers and butter, cover with a lid, and cook for another 10 to 15 minutes or until the butter is melted and the crackers are warm.
cheesy cream green bean casserole in baking dish.

Can I make this in advance?

Absolutely! It’s as if casseroles were invented to be made ahead of time. To do so, combine all of the ingredients (except for the crackers and butter) in the baking dish, cover it well, and store it in the fridge for 2 or 3 days.

Give the mixture a good stir before adding the crackers and butter on top and baking the casserole in the oven.

Recipe variations

  • Want to add a little protein? Make this dish an all-in-one meal by mixing in some leftover cooked chicken, turkey, or beef.
  • To give the casserole a kick, spice it up by stirring in some cayenne pepper or red chili flakes.
  • For fresher flavors, make this recipe using homemade cream of mushroom soup or keto mushroom soup.
  • Instead of using Ritz crackers, use crispy fried onions for an added crunch or you can even use caramelized onions.

Want to add even more frozen vegetables? Sliced bell peppers, onions, cauliflower, or carrots would all be delicious.

baking dish filled with bubbly cheesy casserole with  broccoli, green beans and ritz crackers.

What can I serve with cheddar broccoli casserole?

Just like a classic green bean casserole, this recipe is the perfect dish to serve on major holidays next to a Juicy Thanksgiving Turkey and Creamy Mashed Potatoes.

Because it’s so easy to make ahead of time, you can pop the casserole in the fridge while you focus on preparing more veggie-packed side dishes to feed family and friends, like my Oven Roasted Brussels Sprouts, Lentil Kale Soup, and Fried Cabbage with Sausage.

The leftovers (or a fresh batch) make for a quick and easy side dish or a veggie-full dinner you can simply reheat on busy weeknights. It’s creamy and delicious next to my Pot Roast, or Cheesy Meatloaf.

More vegetable casseroles you might like

Cheesy Eggplant Casserole
Cheesy Green Pepper Bake
Green Bean & Potato Casserole
Grandma’s Cornbread Dressing
French Fry Casserole
Carrot Casserole

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This comforting Green Bean Broccoli Casserole (With Frozen Vegetables) comes together quickly with the help of frozen vegetables, canned mushroom soup, cheddar cheese, and crunchy Ritz crackers. It’s a delicious and creamy side dish you can enjoy for the holidays or weeknight dinners.
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4.67 from 3 votes

Green Bean Broccoli Casserole (With Frozen Vegetables)

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This comforting Green Bean Broccoli Casserole (With Frozen Vegetables) comes together quickly with the help of frozen vegetables, canned mushroom soup, cheddar cheese, and crunchy Ritz crackers. It’s a delicious and creamy side dish you can enjoy for the holidays or weeknight dinners.
Prep Time: 10 minutes
Cook Time: 50 minutes
Total Time 1 hour
serves 6

Ingredients

  • 10 oz bag frozen green beans
  • 10 oz bag frozen broccolli
  • 1 10.5 oz can cream of mushroom soup
  • 1/2 cup milk
  • 1 cup shredded cheddar cheese
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 12 ritz crackers crumbled
  • 2 tablespoons butter cut into small cubes

Instructions

  • Preheat oven to 350 degrees F.
  • Place frozen green beans and broccoli in a 8×8 casserole dish.
  • In a medium-sized bowl mix cream of mushroom soup, milk, cheddar cheese, salt and pepper.
  • Pour this mixture on top of frozen vegetables in casserole dish, mixing them to coat and combine.
  • Sprinkle crumbled crackers on top of casserole. Add 2 tablespoons butter (cut into small cubes) on top of crackers.
  • Bake for 50 minutes uncovered. Serve and enjoy!

Video:

Course:Main Course
Cuisine:American
Keyword:Green Bean Broccoli Casserole
Did you make this?I love seeing what you’ve made! Tag me on Instagram at @BrooklynFarmGirl and don’t forget to leave a comment & rating below.
Green Bean Broccoli Casserole Story

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  1. Gina says

    June 11, 2022 at 6:36 pm

    Can I make this with fresh veggies?

    Reply
  2. Louie says

    April 4, 2022 at 2:02 pm

    Looks like something I would enjoy. Haven’t made this yet. Don’t have frozen veg ingredients. Could you recommend cooking times and temperatures for raw broccoli and green beans as well as blanched? TIA

    Reply
    • Pamela says

      April 4, 2022 at 3:04 pm

      Hey Louie, if you’re going to use fresh vegetables, make sure to blanch the broccoli and beans – they both will need it. I also have a similar casserole recipe here using fresh veggies:https://brooklynfarmgirl.com/green-bean-and-potato-casserole/

      Reply
  3. Brian D says

    April 19, 2021 at 4:17 pm

    Had all the ingredients so thought why not. Ended up delicious with no leftovers, will make again.

    Reply
  4. Angela T says

    January 5, 2021 at 5:14 pm

    I was wondering if I have to adjust anything if I use fresh broccoli

    Reply
    • Pamela says

      January 6, 2021 at 11:09 am

      Hey Angela, I would definitely blanch the broccoli if you’re using fresh broccoli. I do have a similar recipe using fresh green beans and broccoli, check it out here: https://brooklynfarmgirl.com/green-bean-and-potato-casserole/

      Reply
  5. Michele says

    December 4, 2017 at 7:18 pm

    I wonder if you can make this with just broccoli?

    Reply
    • Pamela says

      December 4, 2017 at 10:14 pm

      Hey Michele, absolutely you can! Enjoy!

      Reply
  6. books says

    September 17, 2013 at 11:47 am

    Wonder if you can do this in the crockpot, then top with the extra fried onion straws toasted in the toaster oven? Ever try it before? Are the fried onions that are baked in the center of the casserole soft once cooked?

    Reply
    • Pamela says

      September 17, 2013 at 1:55 pm

      I never tried in the crockpot, but I think it would be successful, I would probably cook on low for about 5 hours.

      Reply
  7. Rosie @ Blueberry Kitchen says

    April 22, 2013 at 12:08 pm

    This does look like such a delicious casserole! Thanks for the recipe, I think I’m going to have to try this 🙂

    Reply
    • Pamela says

      April 24, 2013 at 10:30 pm

      Happy to hear this, hope you love it as much as I do. 🙂

      Reply
  8. Jersey Girl Cooks says

    April 22, 2013 at 10:33 am

    Love how you added broccoli to this. I think it is great as a meal. I could eat a whole can of the onions myself:)

    Reply
    • Pamela says

      April 24, 2013 at 10:32 pm

      Hahaha, the onions are good. I hear they now sell cheddar flavored ones, I’m on the lookout for them!

      Reply
  9. Pam says

    April 18, 2013 at 10:59 am

    It looks like my kind of comfort food. Easy & delicious.

    Reply
  10. [email protected] says

    April 18, 2013 at 10:03 am

    That’s the recipe I grew up eating. SO yummy and great memories.

    Reply
    • Pamela says

      April 24, 2013 at 10:31 pm

      I love hearing when recipes bring back memories, those are the best. 🙂

      Reply

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