This inexperienced bean casserole recipe is a scrumptious vacation aspect dish! It is created from scratch with contemporary inexperienced beans and a creamy mushroom sauce.

Inexperienced bean casserole is at all times on my household’s Thanksgiving menu. We, like many of us, made the basic model with Campbell’s cream of mushroom soup, french fried onions, and canned inexperienced beans for years…till I set myself the duty of constructing a home made inexperienced bean casserole from scratch.
Let me introduce you to the outcomes: this inexperienced bean casserole recipe. It stars contemporary inexperienced beans, crispy onions, and a creamy mushroom sauce that blows the canned soup out of the water. As soon as I attempted it, I couldn’t return to the Campbell’s model, and I don’t assume you’ll be capable to both.
This inexperienced bean casserole recipe is contemporary, colourful, and full of savory taste. Add it to your vacation desk this yr, and it’s assured to be a success.

Inexperienced Bean Casserole Components
Right here’s what you’ll must make this recipe:
- Contemporary inexperienced beans, in fact! I like slender haricots verts greatest, however any sort will do. In a pinch, frozen inexperienced beans are a fantastic substitute for contemporary.
- Cremini mushrooms – For the home made mushroom sauce. Swap in white button mushrooms in case you desire!
- Tamari or soy sauce – It brings out the mushrooms’ umami taste.
- Garlic and thyme – They add contemporary, earthy taste to the sauce.
- Dijon mustard – For tangy taste.
- Milk (any form!) and Parmesan cheese – They offer the mushroom sauce its creamy texture.
- All-purpose flour – It thickens the sauce.
- French fried onions – They create the casserole’s crispy, savory topping.
- Further-virgin olive oil – For richness.
- And salt and pepper – To make all of the flavors pop!
Discover the whole recipe with measurements beneath.
Variation
As a substitute of utilizing store-bought french fried onions, make crispy baked onions from scratch! It solely takes about half-hour, and it’s so scrumptious. Discover the total directions within the recipe notes beneath.

The best way to Make Inexperienced Bean Casserole
You’ll find the whole recipe with measurements on the backside of this publish, however for now, right here’s an summary of the way it goes:
Begin with the onions, in case you’re making them from scratch. Tossed with flour, panko, olive oil, and salt, they take about 25 minutes to turn into crisp and golden brown within the oven.
Then, blanch the inexperienced beans till they’re crisp-tender and vibrant inexperienced. Drain and unfold them on a kitchen towel to dry.

Subsequent, make the sauce. Sauté the mushrooms, then add all of the sauce substances besides the Parmesan. Simmer till thickened, round 20 minutes. End the sauce with the cheese and black pepper.

Lastly, assemble and bake! Take pleasure in scorching from the oven.

Greatest Inexperienced Bean Casserole Recipe Ideas
- Be certain your inexperienced beans are dry. Nobody likes a watery inexperienced bean casserole, so dry the inexperienced beans totally after you blanch them!
- Watch the onions carefully in case you’re making them from scratch. They’ll shortly go from good to burned, so ensure that to control them within the oven. I additionally prefer to rotate the pans each 10 minutes to assist them prepare dinner evenly.

Are you able to make inexperienced bean casserole forward of time?
Sure! You may make this casserole as much as a day prematurely. Right here’s how:
- Blanch the inexperienced beans.
- Make the mushroom cream sauce.
- Layer the sauce and inexperienced beans within the casserole dish. Cowl tightly and retailer within the fridge till simply earlier than serving.
- In case you’re making the onions from scratch, retailer them at room temperature for as much as 1 day.
- If you’re able to bake, uncover the casserole and add the onion topping. Bake in accordance with the recipe.
Storage
This recipe is greatest on the day it’s made, however leftovers maintain properly for as much as 2 days. Retailer them in an hermetic container within the fridge, and reheat within the microwave or a 350°F oven.

Extra Favourite Thanksgiving Recipes
In case you love this recipe, attempt one in every of these Thanksgiving aspect dishes subsequent:

Inexperienced Bean Casserole
Serves 8
This inexperienced bean casserole recipe is a scrumptious home made model of the basic vacation aspect dish. It is made with contemporary inexperienced beans and a from-scratch creamy mushroom sauce. I prefer to high it with crispy baked onions (see the notes beneath!), however store-bought crispy fried onions work right here too.
Forestall your display screen from going darkish
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Preheat the oven to 400°F. Evenly grease a 9×13-inch baking dish.
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Carry a big pot of salted water to a boil and set a big bowl of ice water close by. Drop the inexperienced beans into the boiling water and blanch for 4 minutes. Instantly switch to the ice water to cease the cooking course of. Drain and switch to a towel to dry.
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Warmth the olive oil in a big skillet over medium warmth. Add the mushrooms and prepare dinner till comfortable, 8 to 10 minutes. Stir within the tamari, garlic, and thyme. Sprinkle the flour over the mushrooms and stir once more. Add the milk and mustard and stir to mix. Simmer till thickened, whisking usually, 15 to twenty minutes. Stir within the Parmesan cheese and pepper.
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Unfold ⅓ of the sauce on the backside of the baking dish. Unfold the inexperienced beans evenly on high, then high with the remaining sauce. Sprinkle on the onions and bake, coated, for 10 minutes. Uncover and bake for 10 extra minutes. If the onions begin to brown an excessive amount of, cowl the dish for the rest of the baking time. Garnish with sprinkles of Parmesan, if desired. Serve scorching.
Thinly slice 2 medium yellow onions. In a big bowl, toss the onions with 4 teaspoons olive oil, 1/2 cup all-purpose flour, 2 tablespoons panko bread crumbs, and 1/2 teaspoon sea salt. Unfold evenly on the baking sheets and bake for 25 to 35 minutes, tossing each 10 minutes (rotating the pans within the oven as essential), till calmly browned and crispy. Retailer at room temperature till you are able to assemble the casserole.
Vegan possibility: Omit the cheese and add a number of additional pinches of salt to the mushroom sauce.
