This French's Green Bean Casserole recipe is packed with delicious ingredients, can be easily made vegan and gluten-free, and is a great side dish for any meal, not just for Thanksgiving. It's one of my favorite casserole recipes for a reason!
When meal prepped, this takes just 20-30 minutes of bake time. If you have all the ingredients, start with Step 4. Otherwise, you'll need to prepare the rest of the elements.
Step 1: Blanch the Green Beans
Clean your green beans, then cut the tips off.
Fill a saucepan with a generous amount of water and sprinkle with salt, then bring it to a boil. The water should be gently "rolling". To blanch, place the beans in the boiling water and cook for precisely two minutes.
Then, immediately remove them from the hot water and put them in a bowl of ice water. Leave to cool for a few minutes. For more tips, check my post on How to Boil Green Beans.
Step 2: Fry the Onions
Thinly slice your onions so they resemble strips.
Turn the heat on beneath a large skillet and add oil. Fry the onions for 2-4 minutes until crispy and golden brown. Divide in two. For more tips, check my easy method for perfect fried onions.
Step 3: Make the Cream of Mushroom Soup
If you've got leftovers or are using canned soup, you can simply crack open your can or container. Otherwise, prepare the soup now - it takes about 15 minutes. For details, check my easy Cream Of Mushroom Soup recipe.Start by roughly chopping the garlic and onion and wiping and thinly slicing the mushrooms.
Fry the onion and garlic over low-medium heat until they soften and brown slightly. Then add the mushrooms and cook for 7-8 minutes until they soften.
Add salt, pepper, nutmeg, and veggie stock and cook for a further minute.
In a food processor, add the mushroom mixture and the cream and blend until the desired consistency.
Step 4: Assemble and Bake
Pour the cream of mushroom soup into a large, oven-proof baking dish or casserole dish (2 quart baking dish). Add in the green beans, then half of the fried onions and the milk.
Bake at 350ºF/180ºC for about 20-30 minutes until bubbling and golden. Once it's ready, top the dish with the remaining crispy onion topping. Serve and Enjoy!
In the fridge, French's Green Bean Casserole will last up to four days.In the freezer, the casserole will keep for up to 3 months. Once cooled, cover with a lid or foil/plastic wrap and freeze. When you're ready to eat, allow to thaw, then transfer into an oven-proof dish and cook for 8-10 minutes to crisp up the onions and beans.To meal prep, blanch the beans and make the soup ahead of time. Then assemble the dish and leave it in the refrigerator. Fry the onions just before baking and you'll have a delicious side in no time.
Do I have to use mushroom soup? Not necessarily – though the mushroom soup is the best compliment to green bean casserole! Any of the "cream of" soups will do – chicken, onion, asparagus, broccoli, or any vegetable soup. You need a thicker, creamier soup – broths and thinner soups won't work on these beans. For extra flavor, add some black peppers, a teaspoon of soy sauce, or cheddar cheese.Check the blog post for more tips and answers to top FAQs!