Description
This Best-Ever Green Bean Casserole combines fresh green beans with crimini mushrooms in a creamy Parmesan sauce, topped with crispy onions for irresistible flavor! Perfect for any gathering.
Ingredients
Scale
- 2 lb. fresh green beans
- Kosher salt
- 2 Tbsp. extra-virgin olive oil
- 1 lb. crimini mushrooms, sliced
- 6 Tbsp. unsalted butter
- 4 large sprigs thyme
- 2 Tbsp. all-purpose flour
- 1¼ cups whole milk
- 1 cup heavy cream
- 4 garlic cloves, finely grated
- ½ cup grated Parmesan
- Freshly ground black pepper
- ¾ cup French’s fried onions
Instructions
- Preheat your oven to 375°F and prepare boiling water with salt.
- Blanch fresh green beans for three minutes, then transfer to ice water and trim ends.
- Sauté crimini mushrooms in olive oil and butter until browned, seasoning with salt and thyme.
- Make a béchamel sauce by whisking flour in melted butter, then gradually adding milk and cream until thickened.
- Combine blanched green beans and sautéed mushrooms in a baking dish, then pour the béchamel sauce over them.
- Cover with foil and bake for 25-30 minutes, then uncover and bake until golden brown, adding fried onions before finishing.
Notes
For gluten-free options, substitute with gluten-free flour.
This dish can be prepared a day in advance and refrigerated before baking.
Nutrition
- Serving Size: 1 cup
- Calories: 325
- Sugar: 3g
- Sodium: 440mg
- Fat: 24g
- Saturated Fat: 12g
- Unsaturated Fat: Unknown
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 55mg