Green Bean Casserole

Growing up, there was one dish that always marked the onset of the holiday season: my grandma’s Green Bean Casserole. The warm scent of creamy mushrooms wafting through the house brought everyone together, evoking cozy memories of laughter, family, and love. As I grew older, I craved that nostalgic taste but also wanted to add my twist. That’s when I came up with these Savory Green Bean Casserole —a handheld version of that comforting classic!

What makes these Gratins special is not just their convenience but the rich layers of flavor packed into each bite. With creamy, cheesy goodness mingling with tender green beans and crispy onions, they offer an elevated experience compared to traditional casserole, perfect for parties or casual dinners. Plus, they’re not your standard casserole; they’re more like a flavor-packed treat you can pick up and enjoy!

Join me as I share how to make this delightful recipe, and I promise you’ll learn how to bring that heartwarming essence of grandma’s kitchen right into your home, all while impressing your friends and family with something wonderfully unique!

What Are Green Bean Casserole ?

The Green Bean Casserole has a delightful origin story that goes back to the 1950s. Invented by the Campbell Soup Company, it became a staple for Thanksgiving and holiday tables across America. But these Green Bean Casserole flip that beloved dish on its head and make it even more practical!

Texture-wise, these Gratins meld the crunch of fresh green beans with a creamy, luscious sauce, all topped with crispy, golden fried onions. Their unique shape makes them a fun and hands-on way to enjoy a traditional dish.

These Gratins are ideal for gatherings when you want to get a little more creative with familiar flavors. They’re a tasty grab-and-go option that will satisfy any craving for comfort food, whether enjoyed at Thanksgiving dinner or a backyard barbecue. So, when the need arises for something special and unique, you know exactly what to whip up!

Why You’ll Love This Recipe

1. Irresistible Taste: The combination of cremini mushrooms, rich Parmesan cheese, and fresh thyme creates an explosion of flavors that will have everyone asking for seconds. Unlike store-bought versions, which often lack depth, these Gratins offer a homemade touch that simply can’t be matched.
2. Cost-Effective: By preparing these Gratins from scratch, you’ll save a bundle compared to ordering a casserole from a restaurant or purchasing pre-packaged sides. Plus, with prices on canned goods soaring, fresh ingredients will save you money and give you better taste.
3. Customization Galore: Want to make it gluten-free? Substitute the all-purpose flour with a gluten-free blend. Prefer a vegan option? Switch out the Parmesan with yeast flakes and use a plant-based milk. These Gratins give you the freedom to play around and cater to dietary restrictions.
4. Time-Friendly: This recipe is straightforward and manageable, even for beginner bakers. With concentrated steps and simple ingredient swaps, you won’t spend hours slaving away in the kitchen.
5. Impressive Presentation: When presented in pretty squares or Gratins, these Green Bean Casserole are visually stunning. The vibrant green of the beans against the earthy mushrooms and crispy onions creates a mouthwatering display that’s perfect for any table setting.

Ingredients

Here’s what you’ll need to create these delectable Green Bean Casserole :

• 1½ pounds green beans (trimmed and halved; fresh is best, but frozen works too)
• 2 tablespoons extra-virgin olive oil (I recommend California Olive Ranch for its rich flavor)
• 16 ounces cremini mushrooms (sliced; feel free to use button mushrooms for a milder taste)
• 2 tablespoons tamari (for a gluten-free option, or soy sauce for general use)
• 4 garlic cloves (minced; fresh garlic offers the best flavor)
• 2 tablespoons fresh thyme leaves (or one tablespoon dried thyme)
• ¼ cup all-purpose flour (Bob’s Red Mill offers an excellent quality option)
• 3 cups milk (any kind; I love using oat milk for creaminess)
• 1½ teaspoons Dijon mustard (adds a zesty kick; Maille is my go-to brand)
• ½ cup grated Parmesan cheese (plus more for sprinkling; Grana Padano is an excellent alternative)
• ¼ teaspoon freshly ground black pepper (use newly cracked pepper for the best flavor)
• 1½ cups French fried onions (or homemade Crispy Baked Onions, check out my recipe notes for this!)

Prep Note: Let any butter you use come to room temperature before incorporating it into the recipe, as it will blend more smoothly.

Step-by-Step Instructions

Follow these simple steps to create mouthwatering Green Bean Casserole:

1. Preheat the oven: Set your oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish with olive oil or cooking spray.
2. Blanch the green beans: Bring a large pot of salted water to a boil, then set a large bowl of ice water nearby. Drop the green beans into the boiling water and blanch for 4 minutes—this helps retain their bright color and crunch. Drain the beans, immediately immerse them in ice water, and then transfer them to a paper towel to dry.
3. Cook the mushrooms: In a large skillet, heat the olive oil over medium heat. Add the sliced mushrooms and sauté until they’re soft and golden brown, about 8 to 10 minutes.
4. Incorporate flavors: Stir in tamari, minced garlic, and thyme, cooking for another minute until fragrant. Sprinkle the flour over the mushrooms and mix well, cooking for an additional minute.
5. Create the sauce: Gradually add the milk and Dijon mustard, whisking continuously. Simmer, whisking often, until thickened (15 to 20 minutes). Stir in the Parmesan cheese and black pepper.
6. Assemble the Gratins: Spread about ⅓ of the sauce evenly in the greased baking dish. Layer the blanched green beans over the sauce, then top with the remaining sauce. Finally, sprinkle generously on top the French fried onions (or crispy baked onions).
7. Bake the Gratins: Cover the dish with foil and bake for 10 minutes, then uncover and bake for another 10 minutes. If the onions start to brown too fast, cover them for the remainder of the time.
8. Serve: Once done, garnish with an extra sprinkling of Parmesan if desired and serve hot!

Chef’s Tips: Keep an eye on the onions—they should be golden but not burnt. If you find that they are browning too quickly, cover them back up with foil.

Expert Tips & Tricks

• Storage recommendations: These Green Bean Casserole can be stored in an airtight container in the fridge for up to 3 days. For more extended storage, freeze them for up to 2 months. Just be sure to thaw them overnight in the refrigerator before reheating.
• Make-ahead instructions: Prepare the Gratins up until the baking step, refrigerate overnight, and bake just before serving. This is a perfect option for holiday parties!
• Troubleshooting common problems: If the sauce is too thick, add a splash of milk to loosen it before pouring it over the beans. If the sauce isn’t thickening, give it a bit more time on the stovetop. Just continue to whisk well!

Serving Suggestions

These savory Gratins can be served as a side or a main dish, and they pair beautifully with:

• Roasted chicken, beef, or turkey for a comforting meal.
• A light salad dressed with lemon vinaigrette for a contrast of flavors.
• For a festive touch, serve alongside cranberry sauce—its tartness complements the creamy Gratins remarkably.

For presentation, cut the Gratins into square portions and set them on a lovely platter, garnishing with fresh thyme sprigs.

Variations & Substitutions

• Cheese Additions: Swap out the Parmesan for cheddar for a more robust flavor. You could even mix in some cream cheese for more creaminess.
• Add Proteins: Incorporate cooked chicken or turkey for a robust dish that’s filling enough to serve as a main.
• Seasonal Variations: In the fall, add chopped cooked butternut squash for extra sweetness and a touch of color.
• Chili-infused: For those who love a kick, consider adding red pepper flakes or diced jalapeños to the mushroom mixture.

Nutrition & Storage Info

• Prep time: 20 minutes
• Cook time: 40 minutes
• Total time: 60 minutes
• Yield: About 12 servings
• Estimated calories per serving: Approximately 250 calories.

Storage Instructions:

• Room temperature: Valued for up to 2 hours.
• Refrigerator: 3 days.
• Freezer: Up to 2 months.

FAQ Section

• Can I use frozen green beans instead of fresh?
• Yes, but ensure you thaw and drain them before using.
• Can I make this recipe vegan?
• Absolutely! Substitute dairy with plant-based alternatives, and omit the cheese or use a vegan substitute.
• What can I use instead of cremini mushrooms?
• You can use any mushrooms you prefer, such as button mushrooms or shiitake.
• Can I prepare this dish ahead of time?
• Yes, you can prep it beforehand and bake it just before your event.
• What’s the best way to reheat leftovers?
• Reheat them in the oven at 350°F until heated through, about 15 minutes. The microwave can also be used, but it may make the onions soggy.
• How do I make homemade crispy onions?
• Thinly slice onions, coat them in flour, and bake until golden and crispy, or fry them for a richer flavor.
• What happens if my sauce is too watery?
• If it’s not thickening, allow it to simmer longer while whisking.
• Can I add other vegetables?
• Definitely! Carrots, peas, or corn make great additions.
• Is this recipe gluten-free?
• With gluten-free flour and tamari, it can easily be switched to a gluten-free dish.
• What occasions are best for serving these Gratins?
• They’re perfect for holidays, potlucks, or any gathering where you want a crowd-pleaser!

Conclusion

These Savory Green Bean Casserole bring a unique twist to a beloved classic, making them an ideal addition to any meal. Not only are they easy to make, but they also carry the warm, nostalgic flavors that remind us of family gatherings.

I encourage you to give this recipe a try and watch your family and friends rave about it, just like mine do! I’d love to hear your feedback or any creative spins you added to the dish. For more comforting recipes, be sure to check out my other posts, such as my Cheesy Potato Casserole or Roasted Root Vegetables!

Happy cooking!

Savory Green Bean Casserole

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A comforting twist on the classic Green Bean Casserole, these savory Gratins feature a creamy filling, tender green beans, and crispy onions. Perfect for gatherings and easy to enjoy!

• Author: ramsy
• Prep Time: 20 minutes
• Cook Time: 40 minutes
• Total Time: 60 minutes
• Yield: 12 servings 1x
• Category: Side Dish
• Method: Baking
• Cuisine: American
• Diet: Vegetarian

Ingredients

Scale 1x2x3x

• 1½ pounds green beans (trimmed and halved)
• 2 tablespoons extra-virgin olive oil
• 16 ounces cremini mushrooms (sliced)
• 2 tablespoons tamari or soy sauce
• 4 garlic cloves (minced)
• 2 tablespoons fresh thyme leaves
• ¼ cup all-purpose flour
• 3 cups milk
• 1½ teaspoons Dijon mustard
• ½ cup grated Parmesan cheese (plus more for sprinkling)
• ¼ teaspoon freshly ground black pepper
• 1½ cups French fried onions

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Instructions

1. Preheat the oven to 400°F (200°C) and grease a 9×13-inch baking dish.
2. Blanch the green beans in boiling salted water for 4 minutes, then transfer to ice water.
3. In a skillet, heat olive oil and sauté sliced mushrooms until soft and golden brown (8-10 minutes).
4. Add tamari, minced garlic, and thyme to the skillet, cooking for an additional minute.
5. Sprinkle flour over the mixture and cook for another minute.
6. Gradually whisk in milk and Dijon mustard, cooking until thickened (15-20 minutes). Stir in Parmesan and black pepper.
7. Spread ⅓ of the sauce in the baking dish, layer the green beans, top with remaining sauce and sprinkle with French fried onions.
8. Cover with foil and bake for 10 minutes, then uncover and bake for an additional 10 minutes.
9. Garnish with extra Parmesan before serving.

Notes

These Gratins can be prepared ahead of time and stored in the fridge for up to 3 days. Freeze for longer storage.

Nutrition

• Serving Size: 1 serving
• Calories: 250
• Sugar: 3g
• Sodium: 500mg
• Fat: 10g
• Saturated Fat: 3g
• Unsaturated Fat: 7g
• Trans Fat: 0g
• Carbohydrates: 35g
• Fiber: 4g
• Protein: 8g
• Cholesterol: 15mg

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