A homemade green bean casserole made from scratch with a creamy sauce and crispy fried onions. A classic old-fashioned Thanksgiving side dish recipe.
Cook Time25 minutesmins
Course: Side Dish
Cuisine: American
Keyword: green bean casserole
Servings: 6
Equipment
9 inch square cake pan
mixing bowl set
measuring cups and spoons
spatula set
Ingredients
1lb.Fresh Green Beans (ends snapped off)
8TablespoonsSalted Butter(divided)
1LargeOnion(chopped)
8 ouncesSliced Mushrooms
3clovesGarlic (minced)
2 1/2cupsHalf n Half
1teaspoonSalt
1teaspoonPepper
2TablespoonsFlour or Cornstarch
2cups Fried Onions(such as French's)
1/2cupParmesan Cheese, grated(optional)
Instructions
In a large skillet, heat 4 Tablespoons of butter over medium-high heat. Add onions and cook until tender and caramelized, about 7-8 minutes, stirring often. Add mushrooms and cook for 4 minutes longer. Stir in garlic and cook for 1 minute. Transfer the mixture to a bowl.
After the onion-mushroom mixture has been removed, use the same skillet. Heat skillet to a medium heat and add remaining 4 Tablespoons of butter. Add flour or cornstarch and begin to quickly whisk the mixture. Let cook, whisking often, for about 2 minutes. Stir in half-n-half, salt, and pepper. Cook for 4-5 minutes until mixture thickens. Taste and check for seasonings.
Preheat oven to 350 degrees. Bring a large pot of water to a boil. Add green beans and cook for 6-7 minutes. Drain and transfer to ice bath to cool (optional).
Add onion-mushroom mixture to cream sauce and stir. Add green beans and stir to coat. Sprinkle with parmesan cheese, if using. Pour into a 9 x 9 baking dish. Bake for 25 minutes or until bubbly. Remove from the oven and cover with fried onions. Bake for 5 minutes longer. Serve immediately, if possible.
Notes
May use fresh, frozen or canned green beans. If using canned green beans, they don't need to be cooked ahead of time.
Don't use anything less than half-n-half in these green beans as it creates a thick sauce.
If you want bite-size green beans, cut the fresh green beans in half.