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–+ servings

Healthy Green Bean Casserole

Content Editor
When it comes to side dishes, few can match the versatility and charm of a green bean casserole. This dish isn’t just a holiday delight.
Print Recipe
Prep Time 30 minutes
Cook Time 1 hour
Total Time 1 hour 30 minutes
Course Main Course
Cuisine American
Servings 10
Calories 279 kcal

Equipment

  • Pan, Skillet

Ingredients
  

For the Mushrooms:

  • 2 tablespoons unsalted butter
  • 1 pound fresh baby bella mushrooms sliced
  • 3 garlic cloves minced
  • 1 tablespoon fresh thyme leaves
  • 1 tablespoon dry white wine
  • ½ teaspoon crushed red pepper flakes
  • Freshly cracked black pepper and a pinch of salt to taste

For the Onions:

  • 2 medium or large yellow onions thinly sliced
  • 1 tablespoon extra-virgin olive oil
  • ½ cup crispy panko breadcrumbs or gluten-free breadcrumbs
  • ½ cup all-purpose flour or whole wheat or gluten-free alternatives
  • ½ teaspoon fine sea salt
  • ½ teaspoon garlic powder
  • ¼ teaspoon smoked paprika

For the Sauce:

  • 3 tablespoons unsalted butter
  • 2 ¼ cups low-sodium vegetable broth or chicken broth
  • ½ cup freshly grated Parmesan cheese
  • ¼ cup all-purpose flour or gluten-free alternative
  • A pinch of freshly grated nutmeg
  • Freshly ground black pepper and salt to taste

For the Green Beans:

  • 2 pounds fresh green beans trimmed and cleaned

Instructions
 

Step 1: Prepare the Green Beans

  • Begin by trimming the green beans. Cut off both ends and wash them thoroughly. You could blanch them briefly in boiling water for about 3 minutes to retain their vibrant color and an optimal texture. Immediately transfer them to an ice bath. This process stops the cooking and keeps them crisp.

Step 2: Make the Mushroom Filling

  • In a large skillet over medium heat, melt the butter and add the sliced mushrooms. Allow them to cook down until they release their juices, about 5 minutes. Stir in the garlic, thyme, white wine, and crushed red pepper flakes. Season with black pepper and salt. Cook for another few minutes until the liquid reduces, deepening the flavor.

Step 3: Prepare the Onion Topping

  • In a separate pan, heat the olive oil and sauté the sliced onions until they’re golden and caramelized. This may take around 15 minutes. Stir occasionally to avoid sticking. Then, mix crispy panko breadcrumbs with the salt, garlic powder, and smoked paprika in a bowl. After your onions have caramelized, mix those in too.

Step 4: Whip Up the Sauce

  • Now, back to your mushroom skillet. Add the butter for the sauce and let it melt. Sprinkle in the flour, whisking vigorously to prevent lumps. Gradually pour in the vegetable broth while whisking. Bring this mixture to a simmer. Stir until it thickens and then incorporate the Parmesan cheese, nutmeg, and season to taste.

Step 5: Combine Everything

  • In a large bowl, mix the green beans with the mushrooms and sauce. Stir until well combined. Transfer to a casserole dish and evenly distribute the onion mixture on top.

Step 6: Bake

  • Place the casserole in a preheated oven at 350°F (175°C) for about 25 minutes. You want the top to be crispy and golden, adding that delightful contrast to the creamy beans underneath.

Notes

Select Freshness: Choose crisp green beans and avoid any that appear limp or bruised.
Don’t Rush the Onions: Caramelizing onions takes time but enriches the overall flavor significantly.
Mix It Up: You can add protein like cooked chicken or turkey to make this a complete meal.
Check Texture: If your green beans aren’t tender enough after baking, cover with foil for the last 10 minutes to steam them.
Let it Rest: Allow the casserole to sit for about 5 minutes before serving. This helps to set the sauce.

Nutrition

Calories: 279kcalCarbohydrates: 55gProtein: 9gFat: 5.9gSaturated Fat: 2.9gCholesterol: 9mgSodium: 228mgFiber: 8gSugar: 8g
Keyword Healthy Green Bean Casserole
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