If you’re searching for a dish that brings warmth and comfort, look no further than this delectable Mac and Cheese Green Bean casserole. Perfectly combining the classic flavors of macaroni and cheese with the nutritious crunch of green beans, this recipe is not only delicious but also straightforward to prepare. The creamy cheddar cheese sauce envelops the macaroni and green beans, while a crispy topping makes every bite a delight. Whether you’re hosting a family gathering, preparing a potluck dish, or simply looking to treat yourself to a comforting meal, this dish checks all the boxes.
Mac and Cheese is a classic dish that many of us grew up loving. It’s often associated with childhood memories, family gatherings, and cozy evenings at home. In this version, we’ve added green beans for a refreshing twist that not only enhances the dish’s flavor but also packs in some extra vitamins and minerals. It’s a fantastic way to sneak in some veggies without compromising on taste. Plus, with a cook time of only 30 minutes, you’ll have this comforting casserole ready to enjoy in no time!
Why You’ll Love This Mac and Cheese Green Bean
- Flavorful and Creamy: The combination of sharp cheddar and creamy heavy cream creates a rich and satisfying sauce.
- Easy to Make: This dish comes together quickly, requiring minimal prep time and straightforward cooking steps.
- Nutritious Twist: The addition of green beans not only enhances the flavor profile but also doubles as a healthy component.
- Perfect for Any Occasion: Whether it’s a family dinner or a potluck, this casserole is always a crowd-pleaser, appealing to both kids and adults.
- Make-Ahead Friendly: This dish can be prepped in advance and baked when you’re ready, making it a fabulous option for busy days.
Preparation Phase & Tools to Use
Before you dive into making this mouthwatering Mac and Cheese Green Bean, it’s essential to prepare your kitchen and gathering necessary tools. Start by ensuring you have a large pot for boiling the macaroni and a mixing bowl for combining the ingredients. A whisk will be handy for mixing the cheese soup and cream without lumps, and a spatula will help you fold everything together efficiently.
Additionally, preheat your oven to 200°C (about 400°F) so it’s ready when your casserole is assembled. Having a greased 33 x 23 cm (or 9 x 13 inch) baking dish on hand is crucial, as it will hold all the delightful components of this dish. Make sure to keep measuring cups and spoons close by for accurate ingredient quantities. Once your workspace is set, you’re ready to bring this delightful casserole to life!

Ingredients
- 227 grams macaroni noodles, uncooked
- 298 grams condensed cheddar cheese soup
- 480 millilitres heavy cream
- 21 grams garlic powder
- 21 grams onion powder
- 9 grams salt
- 3 grams ground black pepper
- 411 grams canned cut green beans, drained
- 360 grams shredded mozzarella and cheddar cheese blend
- 114 grams crispy fried onions
Instructions
Step 1: Preheat Your Oven
Start by setting your oven temperature to 200°C (or 400°F). This preheating step is vital for ensuring that your casserole cooks evenly and develops that perfect golden crust on top.
Step 2: Cook the Macaroni Noodles
Bring a large pot of water to a rolling boil and generously salt it. Add in your uncooked macaroni noodles and cook them according to the package instructions, usually about 7-10 minutes until al dente. Drain the noodles well and set them aside, letting them cool for a few moments while you prepare the cheese sauce.
Step 3: Make the Cheese Sauce
In a large mixing bowl, whisk together the condensed cheddar cheese soup and heavy cream until the mixture is smooth and consistent. The creamy texture not only adds flavor but also ensures the macaroni noodles are delightfully coated when baked.
Step 4: Season the Sauce
To the cheese mixture, add the garlic powder, onion powder, salt, and black pepper. Whisk everything together thoroughly to ensure that the seasonings are evenly distributed throughout the sauce, enhancing the dish’s overall flavor profile.
Step 5: Combine Macaroni and Green Beans
Once your cheese sauce is ready, gently fold the drained macaroni noodles into the mixture until every noodle is well-coated. Next, add the green beans and mix carefully to ensure they are evenly integrated throughout the dish without breaking them.
Step 6: Add Cheese and Assemble in Baking Dish
Stir in 240 grams of the shredded mozzarella and cheddar cheese blend into the macaroni and green bean mixture until well distributed. Spread this combination evenly into your greased baking dish, making sure it’s fully packed for the ultimate creamy experience. Top with the remaining 120 grams of shredded cheese, followed by a generous layer of crispy fried onions for that appealing crunchy texture.
Step 7: Bake the Casserole
Cover the baking dish tightly with aluminum foil to prevent the top from burning. Bake in the preheated oven for 20 minutes. After this initial time, carefully remove the foil and bake for an additional 4 to 6 minutes until the onions are golden brown and crunchy. The aroma wafting through your kitchen will be irresistible!
Step 8: Let It Rest
Once baked, it’s crucial to let the casserole rest for several minutes before portioning it out. This resting period allows the flavors to settle and the casserole to firm up a bit, making it easier to serve.

Variations
- Protein: Add cooked shredded chicken or turkey for a heartier casserole.
- Vegetables: Incorporate other veggies like broccoli or peas for additional color and nutrition.
- Spices: Experiment with different spices such as paprika or cayenne for an extra kick.
Cooking Notes
- For a healthier version, consider using low-fat cream and reduced-sodium soup.
- This dish can be made ahead of time – assemble it and store it in the fridge, then bake when ready to serve.
- If you prefer a more substantial crunch, toast the crispy fried onions in the oven for a few minutes prior to topping your casserole.
- Leftovers should be stored in an airtight container in the refrigerator for up to 3 days, reheating well in the oven or microwave.
Serving Suggestions
- Pair with a fresh side salad or steamed vegetables for a balanced meal.
- Serve with crusty bread for a full comfort food experience.
Tips
- Always measure your cheese and cream precisely for consistent texture every time you make this dish.
- Try making this dish vegan by substituting regular cheese and cream with their plant-based counterparts.
- For extra flavor, mix in some grated Parmesan cheese to your cheese blend.
- Don’t skip the resting time after baking; it significantly enhances the overall texture and flavor.
Prep Time, Cook Time, Total Time
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
Nutritional Information
- Calories: Approximately 450 per serving
- Protein: 15g
- Sodium: 600mg
FAQs
Can I use a different type of pasta?
Absolutely! While macaroni is traditional, feel free to use any pasta shape you have on hand, like shells or fusilli.
How can I make this dish gluten-free?
Simply substitute the macaroni with a gluten-free pasta option, and ensure the cheese soup is also gluten-free.
Can I make this recipe ahead of time?
Yes! You can prepare the casserole a day in advance, cover it tightly, and store it in the refrigerator until you’re ready to bake it.
What’s the best way to store leftovers?
Store any leftovers in an airtight container in the fridge. They should keep well for up to three days.
Conclusion
This Mac and Cheese Green Bean casserole is not just a meal; it’s a delightful experience that everyone will love! Combining the nostalgic flavors of traditional mac and cheese with the nutritious addition of green beans makes this dish a winner for any occasion. It’s easy, versatile, and truly comforting, ensuring satisfaction with every forkful. Whether enjoyed freshly baked or as a comforting leftover, this recipe will make you wish you had leftovers! After trying your hand at this delightful casserole, please share your thoughts in the comments below or explore ways you’ve made it your own. Happy cooking!
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Mac and Cheese Green Bean Casserole
- Total Time: 45 minutes
- Yield: 6 servings 1x
Description
This Mac and Cheese Green Bean casserole is a delightful experience combining nostalgic flavors and nutritious green beans.
Ingredients
- 227 grams macaroni noodles, uncooked
- 298 grams condensed cheddar cheese soup
- 480 millilitres heavy cream
- 21 grams garlic powder
- 21 grams onion powder
- 9 grams salt
- 3 grams ground black pepper
- 411 grams canned cut green beans, drained
- 360 grams shredded mozzarella and cheddar cheese blend
- 114 grams crispy fried onions
Instructions
- Preheat your oven to 200°C (or 400°F).
- Cook the macaroni noodles according to package instructions and drain.
- Whisk together cheddar cheese soup and heavy cream in a bowl.
- Add garlic powder, onion powder, salt, and black pepper to the mixture and whisk.
- Fold in drained macaroni noodles and green beans.
- Stir in cheese blend, spread in a baking dish, and top with fried onions.
- Bake covered for 20 minutes, then uncovered for an additional 4 to 6 minutes.
- Let it rest before serving.
Notes
This dish can be made ahead of time – assemble it and store it in the fridge, then bake when ready to serve.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dinner
Nutrition
- Calories: 450 kcal
- Sodium: 600 mg
- Protein: 15 g