Made from scratch creamy tender crisp Green Bean Casserole with fresh mushrooms. The quintessential side dish for the holidays.
What is the one side dish that comes to mind when you think of the holidays? Safe to say for many it is Green Bean Casserole, the quintessential side dish for Thanksgiving in particular. When cooked right, those crunchy green beans combined with a creamy sauce topped with crispy fried onions make this dish almost irresistible.
Condensed Soup Versus From Scratch
If you enjoy the condensed soup version, I promise you will like this Green Bean Casserole Made from Scratch even better. The beans are left hold so that they retain their color and crunchy texture. Mushrooms are added for greater flavor. The made from scratch white sauce is lighter and fresher. Melted cheese holds the dish together and crispy fried onions gives it that golden inviting look.
Effort Always Wins
Cooking the sauce does not take long at all and it is well worth the effort. Once you have tried making your own white sauce, you will not go back and reach for the canned soup. I think you will agree that making this from scratch is way, way better than the short cut version.
Tools Used in Making This Green Bean Casserole
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Staub Ceramics Rectangular Baking Dish – Basil – 10.5″ x 7.5
Pyrex Prepware 1-Cup Glass Measuring Cup
4-Piece Stainless Steel Measuring Spoon Set

Green Bean Casserole
Ingredients
- 1 lb green beans (washed and drained) (450g)
- 8 oz mushrooms (sliced) (225g)
- 3 tbsp butter
- 1 onion (diced)
- 2 cloves garlic (minced)
- 3 tbsp all-purpose flour
- ¼ tsp dried thyme
- 2 cups milk (480ml)
- 1 tsp salt
- ¼ tsp ground pepper
- 1 cup shredded cheese (4 oz/113g)
- 1 cup crispy fried onions (50g)
Instructions
- Line up green beans on a chopping board a few at a time. Cut off the tops and tails.
- Bring a large pot of water to boil. Blanch green beans for 3 minutes. Remove with strainer and immediately place green beans in a cold bath to stop the cooking. Drain and transfer to a casserole dish. Mix in sliced mushrooms.
- Melt butter over low heat in a saucepan. Sauté onion and garlic for 2 minutes until soft. Add flour and stir constantly until mixture starts to brown, about 3 minutes.
- Stir in dried thyme. Gradually pour in milk whisking or stirring into a smooth bubbly sauce. Season with salt and pepper. Turn off stove.
- Pour sauce over green beans and mushrooms.
- Sprinkle cheese on the top. Bake in a preheated 350°F (180°C) oven for 25 minutes. Remove casserole from oven and sprinkle French onions on the top. Return to the oven and continue to bake for another 5 minutes.
- Remove and serve warm.
Nutrition
Serving Suggestions for this Green Bean Casserole
I served this delicious side dish with this easy golden crispy skin Rosemary Thyme Baked Chicken. If you are serving this for Thanksgiving, please check out my Roast Turkey with step-by-step brining and rosting instructions or fuss free Dry Rub Roast Turkey. Bon Appetit!
Enjoy…..and have a wonderful day! 😎
CakePants says
Green bean casserole has always been a favorite of mine, and I too prepare mine without any prepared soups. I’ve never tried adding cheese, though! I’ll have to give that a try sometime…after all, adding cheese is never a bad idea!
Linda says
Cooking it from scratch is totally worth the effort as the sauce taste so much “fresher”. I agree. A little cheese never hurts. 🙂