Make this from scratch Fresh Green Bean Casserole with Onion Ring Topping this holiday season! Green beans tossed with a creamy homemade mushroom sauce is topped with crispy air-fried onion rings and baked until bubbling and delicious. Serves 6 to 8.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com #thanksgiving #sidedish #greenbean #casserole #fromscratch #homemade #onionring

As if you couldn’t guess, my favorite Thanksgiving side dish is and always will be, green bean casserole.

A few years ago I did make a homemade version. While it’s super delicious, I still wanted that crispy fried onion topping.

Let’s be real, it’s the reason why people love this casserole so much, amiright? SO after owning my air-fryer for a year now, it has easily become my favorite appliance. And it makes the perfect onion topping for my homemade green bean casserole.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

No can of cream of mushroom soup needed.

Just simple, fresh ingredients for the best green bean casserole deserving enough to grace your Thanksgiving table.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

To make this homemade Fresh Green Bean Casserole You Will Need:

  • fresh green beans
  • unsalted butter
  • shallot
  • sliced fresh mushrooms
  • cloves fresh garlic
  • all-purpose flour
  • half and half
  • freshly grated nutmeg
  • kosher salt
  • freshly ground black pepper
  • freshly grated Parmesan cheese
  • beer battered onion rings

If you don’t have an air-fryer you can still make this recipe. Either slice up a bunch of shallots and fry them in 1 tablespoon each butter and olive oil until crispy or buy the store-bought crispy fried onion topping. No judgement here.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

First prep the green beans by bringing a large pot of salted water to boil. Also, fill a large bowl with ice and set a mesh strainer or colander in the center and fill with water.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Trim and cut 1-1/2 pounds green beans in half. Once the water is boiling, add all of the green beans and simmer for 6 minutes or until bright green and just starting to become tender.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Transfer the green beans to the waiting colander in the ice bath. When they are cool to touch, remove the strainer holding the green beans and drain well. Set these off to the side for a moment.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Melt 2 tablespoons of butter in a large, deep-sided skillet over medium-low heat.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

To the butter, add 1 diced shallot with a pinch of kosher salt and sauté until tender, about 5 minutes.

What is better than the smell of butter and shallots sautéing?

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

To that, add in 8 ounces of sliced mushrooms. Stir and cook until just tender, about 5 to 8 minutes, before adding in the 2 small cloves of garlic that have been minced. Cook for 1 to 2 minutes.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

As far as what mushrooms to use, I’m using cremini mushrooms, but white button would work too.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Once the mushrooms are tender, add in the remaining 4 tablespoons of butter.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Measure and stir in 1/4 cup unbleached all-purpose flour, until absorbed. Cook the flour for 2 to 3 minutes, stirring occasionally.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Pour in the 2 cups of half & half and stir, over medium-high heat, until thickened.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Stir in 1/3 cup freshly grated parmesan cheese.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Season with 1 teaspoon kosher salt (more or less to taste), 1/2 teaspoon freshly ground black pepper and 1/8 teaspoon grated fresh nutmeg.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Lastly, toss the blanched green beans in the creamy mushroom sauce before pouring the green bean mixture into 9×9 (or 8×8 would suffice) baking dish that has been sprayed with olive oil spray.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Cover tightly with aluminum foil and bake on the middle rack of your preheated 350° for 20 minutes.

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

This casserole will smell heavenly!

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Remove the foil and scatter the lightly battered onion rings over top. Continue baking for an additional 20-25 minutes or until the casserole is bubbling and the onion rings are crispy and a deeper golden color.

I’m not kidding you when I say this is the best green bean casserole.

It’s the perfect combination of creamy meets crispy and it’s so delicious! But most importantly it’s easy. Instructions for making it in advance included 🙂

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Enjoy! And if you give this Fresh Green Bean Casserole recipe a try, let me know! Snap a photo and tag me on twitter or instagram!

Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com

Air Fryer Beer Battered Onion Rings
Yield: 6+ servings

Air Fryer Beer Battered Onion Rings

Crispy and delicious, these Air Fryer Beer Battered Onion Rings are simple to whip up for a snack! Sweet onions are dredge and then dipped in beer and breadcrumbs. The air fryer crisps these up beautifully in minutes.

Prep Time 15 minutes
Cook Time 6 minutes
Additional Time 19 minutes
Total Time 40 minutes

Ingredients

  • 2 to 3 sweet onions (vidalia onions are best)
  • 1 cup unbleached all-purpose flour
  • 1 tablespoon all-purpose season salt
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon freshly ground black pepper
  • 1 egg, lightly beaten
  • 1 cup beer (I used lager)
  • 2 cups plain breadcrumbs
  • olive oil spray
  • fine sea salt
  • ketchup or fry, sauce for serving

Instructions

  1. Trim off the ends of your onions and slice 1/4 to 1/2 inch thick. Then separate the rings.
  2. In a shallow bowl whisk together the flour, season salt, baking soda and black pepper.
  3. In a separate shallow bowl, whisk the egg with 1 cup of beer.
  4. In a third, separate bowl add the plain breadcrumbs.

FOR THE LIGHTLY BATTERED ONION RINGS:

  1. Dip the onion rings into the seasoned flour. Then, working in batches, transfer a few to the beer mixture and toss to coat. Then dip the onion rings the plain breadcrumbs. T
  2. hen spritz with olive oil spray. Preheat your air fryer to 360º and fry for 5 to 6 minutes or until crispy.
  3. Working in batches, add the prepared onions into your air-fryer basket in an even layer. And cook for 5 to 6 minutes.

FOR THE EXTRA CRISPY BATTERED ONION RINGS:

  1. Dip the onion rings into the seasoned flour. Then, working in batches, transfer a few to the beer mixture and toss to coat.
  2. Then transfer the onion rings back to the flour mixture and toss to coat. Dip the onion rings back in the beer mixture before transferring to the bread crumbs.
  3. Preheat you air fryer to 360° and air fry for 6 to 8 minutes or until crispy.

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Nutrition Information:

Yield:

6

Serving Size:

1

Amount Per Serving: Calories: 341 Total Fat: 6g Saturated Fat: 1g Trans Fat: 0g Unsaturated Fat: 5g Cholesterol: 32mg Sodium: 588mg Carbohydrates: 59g Fiber: 4g Sugar: 12g Protein: 10g
Nutrition information isn’t always accurate.
Fresh Green Bean Casserole with Onion Ring Topping l SimplyScratch.com