If you’re searching for a warm and comforting dish that’ll be a hit at any family gathering, look no further than this Ultimate Green Bean Casserole with Potatoes recipe. This delightful casserole combines the classic flavors of green beans and creamy sauce with hearty potatoes, creating a side dish that is sure to please both kids and adults alike.
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Why You’ll Love This Ultimate Green Bean Casserole with Potatoes
There are countless reasons to fall head over heels for this Ultimate Green Bean Casserole with Potatoes. First, this dish is not only packed with flavors but also provides a wonderful blend of textures. The crisp green beans contrast with the creaminess of the mushroom soup and boiled potatoes, while the crispy fried onions on top add the perfect crunch.

Ultimate Green Bean Casserole with Potatoes
Ingredients
Equipment
Method
- Trim the green beans and wash them well. Peel and cube the potatoes; set aside.
- Boil cubed potatoes in salted water for 10–15 minutes until tender but not mushy. Drain and set aside.
- In a large bowl, combine green beans, cooked potatoes, cream of mushroom soup, milk, salt, and pepper. Stir until well coated.
- Preheat oven to 350°F (175°C). Pour mixture into a greased 9×13-inch baking dish and sprinkle shredded cheddar cheese over the top. Bake for 25 minutes, or until hot and bubbly.
- Remove casserole from oven, top with crispy fried onions, and bake for an additional 10 minutes until golden brown.
- Serve warm as a comforting side dish for any occasion.
Nutrition
Notes
Tried this recipe?
Let us know how it was!Second, it’s easy to make! With straightforward preparation and cooking methods, you’ll have time to spare, allowing you to focus on other parts of your meal or simply relax before your guests arrive.
Lastly, it’s a versatile dish that works wonderfully for holiday gatherings, potlucks, or even just a cozy family dinner. And let’s not forget – it’s an excellent way to get your family to eat their greens without a fuss!

Ingredients for Ultimate Green Bean Casserole with Potatoes
To whip up this scrumptious casserole, you’ll need the following ingredients:
- 1 pound green beans, trimmed
- 4 medium potatoes, peeled and cubed
- 1 can (10.5 oz) cream of mushroom soup
- 1 cup milk
- 1 cup shredded cheddar cheese
- 1 cup crispy fried onions
- Salt and pepper to taste
Ingredient Notes
- Cream of Mushroom Soup: If you prefer a lighter or healthier option, you can use a low-fat version or even make your own homemade mushroom sauce.
- Cheddar Cheese: Swap out for a different cheese like mozzarella or pepper jack for a unique flavor twist.
- Crispy Fried Onions: While traditional, you could also use crushed crackers or breadcrumbs for a different crunch—great if you want to use what you have on hand.
- Potatoes: If you want a low-carb option, consider substituting with cauliflower, which can be boiled and mashed.
Step-by-Step Instructions
Step 1 – Prepare the Ingredients
Start by trimming the green beans and washing them thoroughly. Next, peel and cube the potatoes. Set both aside as you prepare to cook.
Step 2 – Boil the Potatoes
In a pot of salted water, add the cubed potatoes and bring to a boil. Cook them for about 10-15 minutes or until tender but not mushy. Drain and set them aside.
Step 3 – Combine the Ingredients
In a large mixing bowl, combine the trimmed green beans, cooked potatoes, cream of mushroom soup, and milk. Stir well to ensure everything is evenly coated. Add salt and pepper to taste.
Step 4 – Add Cheese and Bake
Preheat your oven to 350°F (175°C). Pour the mixture into a greased 9×13-inch baking dish and sprinkle shredded cheddar cheese over the top. Bake in the preheated oven for about 25 minutes, or until heated through and bubbly.
Step 5 – Add the Topping
After 25 minutes, remove the casserole from the oven and sprinkle the crispy fried onions on top. Return to the oven and bake for an additional 10 minutes or until the onions are golden brown and crispy.

Pro Tips for Success
- Choose Fresh Green Beans: Fresh green beans will provide the best flavor and texture. If using frozen, make sure to thaw them properly.
- Adjust the Consistency: If you prefer a creamier casserole, add an extra splash of milk or a bit more cream of mushroom soup.
- Cheese Lover’s Delight: For an even cheesier casserole, consider mixing in some additional cheese into the green bean mixture prior to baking.
- Crispy Topping: You can fry your onions at home for a fresher taste. Simply slice a yellow onion and pan-fry in butter until golden brown for a homemade alternative.
- Make-Ahead Option: You can prepare this casserole ahead of time. Simply assemble, cover, and refrigerate. When ready to serve, bake from the refrigerator for about 40-45 minutes, ensuring it is heated through.
Flavor Variations
- Add Protein: For a heartier dish, mix in some cooked chicken or turkey.
- Herbs and Spices: Enhance the flavor profile by adding garlic powder, onion powder, or fresh herbs like thyme or rosemary.
- Veggie Boost: Add in some sautéed mushrooms or bell peppers for added nutrition and texture.
- Swap the Dairy: For a non-dairy version, use almond milk and vegan cheese options.
- Spicy Kick: Add a dash of hot sauce or diced jalapeños for a spicy twist.
Serving Suggestions
This Ultimate Green Bean Casserole with Potatoes pairs wonderfully with a variety of main dishes. Serve it alongside roast turkey, honey-glazed ham, or grilled chicken. It’s also a delightful companion to quinoa or brown rice for a vegetarian meal option.

Storage and Freezing Instructions
To store leftovers, allow the casserole to cool completely before transferring it to an airtight container. It will last in the refrigerator for up to 3 days.
For longer storage, you can freeze the casserole, preferably before baking. Cover it tightly with plastic wrap or aluminum foil and label it with the date. When ready to enjoy, thaw in the refrigerator overnight and bake as directed.
Nutrition Facts (Per Serving)
| Nutrient | Amount |
|---|---|
| Calories | 250 |
| Fat | 10g |
| Carbohydrates | 35g |
| Fiber | 4g |
| Protein | 7g |
| Sodium | 450mg |
FAQ About Ultimate Green Bean Casserole with Potatoes
Can I make the casserole ahead of time?
Absolutely! You can prepare the casserole a day in advance and keep it covered in the refrigerator until you’re ready to bake it. Just remember to adjust the baking time if it’s cold from the fridge.
Is this casserole healthy?
While it does have some creamy ingredients, you can make it healthier by using low-fat soup, dairy alternatives, and additional vegetables. This dish can fit well into a balanced diet when consumed in moderation.
Can I use fresh potatoes instead of canned?
Yes! Fresh potatoes are highly encouraged, as they provide better texture and flavor. Just be sure to cook them until tender before mixing them with the other ingredients.
How long will this casserole last?
When stored properly in the refrigerator, leftovers will last for about three days. If frozen, they can last for up to three months.
What can I serve with this casserole?
This casserole is a versatile side dish and pairs well with a variety of mains, including roasted meats or a hearty salad for a balanced meal.
Final Thoughts
The Ultimate Green Bean Casserole with Potatoes is not just a classic dish; it’s a celebration of flavors everyone can enjoy. Perfect for family dinners or holiday festivities, this casserole is easy to prepare and sure to impress. With the ability to customize and make it suit your family’s taste, it’s a recipe that is sure to be treasured in your collection. Enjoy every delicious bite!