Slow Cooker Green Bean Casserole

Fill it with ingredients, put the lid on, and let it do its thing.

It doesnt get much easier than that!

Most slow cookers have three parameters: high, low, and warm.

Slow Cooker Green Bean Casserole on a Platter with Some on a Spoon

Simply Recipes / Ciara Kehoe

You will need to blanch them before adding them to the slow cooker.

You do not need to blanch frozen green beans.

And it couldnt be simpler to make.

Small Bowl of Slow Cooker Green Bean Casserole Topped with Crispy Shallots

Simply Recipes / Ciara Kehoe

Start by cooking your mushrooms in a bit of butter.

Id avoid shiitake mushrooms because they are too chewy for this recipe.

The trick to ultra crispy shallots is to slice them as thinly as possible.

Green Bean Casserole in a Slow Cooker Topped with Crispy Shallots and Next to It, a Small Plate with More Shallots and a Kitchen Towel

Simply Recipes / Ciara Kehoe

Start them in cold oil.

They’ll get crispy in no time, so stir them regularly and keep a close eye on them.

Once they become golden brown, drain the fried shallots on a paper towel.

Slow Cooker Green Bean Casserole Topped with Crispy Shallots on a Platter Surrounded by Utensils, a Kitchen Towel, and a Glass of Water

Simply Recipes / Ciara Kehoe

And try not to snack on too many while your casserole cooks!

The fried shallots can be stored in an airtight container for up to 1 month.

Tip

Save the shallot oil.

Bowl of Ice Water and a Pot of Boiling Water Situated Next to Each Other for Slow Cooker Green Bean Casserole

Simply Recipes / Ciara Kehoe

Its delicious for everything from sauteing vegetables to whisking into salad dressing.

Dont have time to fry your own shallots?

I keep a jar of store-bought shallots in my cupboard at all times.

Green Beans Blanched in Pot of Boiling Water for Slow Cooker Green Bean Casserole

Simply Recipes / Ciara Kehoe

I find them at my local Asian grocery store.

Of course, Frenchs Fried Onions always works too.

Fill a large mixing bowl with ice water and set aside (this is your ice bath).

Blanched Green Beans in Bowl of Ice Water for Green Bean Casserole in a Slow Cooker

Simply Recipes / Ciara Kehoe

Drain the green beans and immediately plunge them into the ice bath.

Once cooled, drain the green beans again and set aside.

In the same pot or Dutch oven, melt 2 tablespoons butter over medium heat.

Mushrooms Sautéed in a Pot for Slow Cooker Green Bean Casserole Recipe

Simply Recipes / Ciara Kehoe

Once melted, add the mushrooms and the salt.

Cook the mushrooms until theyve softened and any water theyve released has cooked away, about 8 minutes.

Sprinkle the flour over the mushrooms and stir to coat.

Seasoning and Garlic Added to Cooked Mushrooms for Green Bean Casserole in a Slow Cooker Recipe

Simply Recipes / Ciara Kehoe

Cook, stirring frequently, until the sauce has reduced and thickened, about 10 minutes.

Add the soy sauce, red wine vinegar, and a few crack of black pepper.

Stir well and taste the sauce, you may want to add more salt.

Mushroom Sauce Stirred in a Pot for Slow Cooker Green Bean Casserole Recipe

Simply Recipes / Ciara Kehoe

Add the blanched green beans and mushroom sauce into the slow cooker.

Stir until the green beans are coated in the sauce.

Line a large plate with several pieces of paper towel.

Green Bean Casserole Ingredients Added to Slow Cooker

Simply Recipes / Ciara Kehoe

Set a fine-mesh strainer over a heat-proof bowl.

In a medium saucepan, combine the sliced shallots and vegetable oil.

Cook on medium-low heat, stirring frequently.

A Colander Placed on a Bowl and a Plate Covered in Paper Towels for Slow Cooker Green Bean Casserole

Simply Recipes / Ciara Kehoe

The shallots will soften first and then turn golden brown.

Continue to fry until the shallots are a dark golden brown, about 20 minutes.

Reserve the flavorful shallot oil for dressings and cooking.

Crispy Shallots Cooling on a Paper Towel Lined Plate

Simply Recipes / Ciara Kehoe

Once the green beans are cooked, stir them well and set the slow cooker to warm.

Scatter the fried shallots on top and serve.

To reheat, return the pot to the base and heat on low for about 1 hour.

Green Bean Casserole in a Slow Cooker Topped with Crispy Shallots

Simply Recipes / Ciara Kehoe

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Slow Cooker Green Bean Casserole Topped with Crispy Shallots on a Platter Surrounded by Utensils, a Kitchen Towel, and a Glass of Water

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