We’re making Thanksgiving in the microwave! Today I’m going to show you how to make Microwave Green Bean Casserole in just six minutes right in the microwave! This post contains affiliate links.

Did you know you could make all your side dishes right in the microwave? And, they take just minutes!
Table of Contents
What do you need to make Microwave Green Bean Casserole?
You’ll need the ingredients for traditional green bean casserole:
- a can of cream of mushroom soup
- 2 cans of green beans
- milk
- soy sauce
- french fried onions
How do you make Microwave Green Bean Casserole?
I like to save a bowl and mix it right up in the casserole dish.

In a 7 x 11 inch microwave-safe dish combine the milk, soy sauce, and mushroom soup and whisk together until completely mixed.
Drain both cans of green beans.

Add the green beans to the soup mixture and mix it up.
Cook on HIGH for 6 minutes, until the soup is bubbly.

Remove from the microwave and sprinkle with french fried onions.
Serve immediately.
Can you make the Microwave Green Bean Casserole ahead of time?
You can make up the soup and green bean mixture ahead of time and put it in the fridge ready to cook, but it will take a few more minutes longer to get it bubbly in the microwave. I’d recommend adding 2-3 additional minutes to the time to cook. Then, add the french fried onions right before serving.
How do you store leftover Microwave Green Bean Casserole?
Keep in a covered container in the fridge for up to 3 to 4 days.
Variations on Green Bean Casserole
- Add 1 can of water chestnuts, drained, to the soup mixture before cooking.
- Switch out the french fried onions for crunchy chow mein noodles.
- Add 1/2 cup of shredded cheddar cheese to the soup/green bean mixture to make a cheesy flavor.
- Add 5 to 6 slices of precooked crumbled crispy bacon mixed in with the french fried onions for a smoky flavor.
- You can also add the cheese and the bacon together for a Cheesy Bacon Green Bean Casserole.
- Add 4 oz of cubed Velveeta to the soup mixture. Make sure it’s completely melted and give it a good stir when you take it out of the oven, then add the crumbled bacon with the french fried onions.
More Thanksgiving Dishes in the Microwave
- The Secret to AMAZING Mashed Potatoes in the Microwave
- 3 Minute Microwave White Gravy {Béchamel Sauce}
- Upside Down Pumpkin Pie in the Microwave
- How to Cook Frozen Corn on the Cob in the Microwave

Microwave Green Bean Casserole
Ingredients
- 1 can (10 1/2 ounces) Campbell’s® Condensed Cream of Mushroom Soup
- 2 cans of cut green beans
- 1/2 cup milk
- 1 teaspoon soy sauce
- 1 cup of french fried onions
Instructions
- In a 7 x 11 inch microwave-safe dish combine the milk, soy sauce, and mushroom soup and whisk together until completely mixed.
- Drain both cans of green beans.
- Add the green beans to the soup mixture and mix it up.
- Cook on HIGH for 6 minutes, until bubbly.
- Remove from the microwave and sprinkle with french fried onions.
- Serve immediately.
Nutrition Information:
Yield:
8Serving Size:
1Amount Per Serving: Calories: 117Total Fat: 6gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 6mgSodium: 516mgCarbohydrates: 13gFiber: 1gSugar: 4gProtein: 4g
Any nutritional information on justmicrowaveit.com should only be used as a general guideline. This information is provided as a courtesy and there is no guarantee that the information will be completely accurate.