Learn how to make A French Onion Green Beans Casserole. Indulge your taste buds with a culinary masterpiece that transforms humble green beans into a decadent delight. Fresh, crisp green beans serve as the vibrant foundation, perfectly complemented by a symphony of flavors that includes rich Gruyere cheese, creating a creamy and savory sensation. The dish is elevated with a luscious white sauce that seamlessly binds the ingredients together, offering a velvety texture that lingers on the palate. Caramelized onions add a sweet and savory depth, infusing each bite with warmth and sophistication. Crowned with a golden layer of crispy panko breadcrumbs, this casserole achieves the ideal balance of textures—crunchy, creamy, and utterly satisfying. It’s not just a side dish, it’s festive culinary experience that promises to enchant every pallet at your holiday gathering.
Ingredients:
2 lb. of Green Beans
8 Oz Shredded Gruyere Cheese
2 Oz grated Parmesan Cheese
2/3 Cups of Panko Breadcrumbs
2 Tbsp. Butter
French Onions:
2-3 Large Sweet Onions (Radial cut)
2 Tbsp. Butter
White Sauce:
2 Tbsp. Unsalted Butter
2 Tbsp. All Purpose Flour
2 Cups of Milk
1/2 Tsp Salt
1 Tsp Black Pepper
1/2 Tsp grated Nutmeg
1/2 Tsp Cayenne Pepper
1 Tsp Dried Thyme
Directions:
1. Prep the Green Beans by snipping off the end, and cutting them in half
2. Bring a pot of water to a boil, add 1 Tsp salt, and add the Green Beans. Boil for 2-3 minutes to blanch the Green beans. Then strain and set aside to cool.
3. Caramelize the onions by heating a pot over medium low heat. To it add butter, and the sliced onions and stir them until the onions wilt and turn a brown color.
4. Create the white sauce by heating a sauce pan over medium heat. To it add butter, and all purpose flour to create a roux. Then add the milk slowly to prevent lumps. Then add the salt, black pepper, cayenne pepper, thyme and nutmeg.
5. In a small bowl, add the Panko breadcrumbs and drizzle in 2 Tbsp. of melted butter. Gently mix until all the breadcrumbs have absorbed the butter.
6. Preheat the oven to 375 F (or 190 C)
7. Grease a 9″ x 13″ casserole dish. Add half of the French Onions and spread them out evenly. Then add half of the Green Beans, and spread them evenly. Then ladle on half of the white sauce. Then add a layer of shredded Gruyere cheese. Then repeat starting with the Green Beans, then white sauce, then French Onions, and then Gruyere cheese. Atop the cheese add a layer of Panko Breadcrumbs. Then add a layer of grated parmesan cheese.
8. Put in the oven uncovered, and bake for 25 minutes at 375 F.
9. After 25 minutes, remove from oven, and allow to cool for 10 minutes before serving.
10. Enjoy 🙂
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