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Smoked Green Bean Casserole

Smoked Green Bean Casserole is the ultimate side dish for holiday dinners. Made with fresh green beans and a homemade mushroom sauce that is loaded with flavor. Easy to make on the grill!

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Pan of green bean casserole with serving spoon in the dish.

Classic green bean casserole is a must-have for Thanksgiving dinner and from now on, we are making it on the grill. The smoky flavor makes this side dish even more delicious.

Why You Will Love this Smoked Green Bean Casserole Recipe

  • Easy Recipe: This casserole side dish is easy to make and can even be made a day in advance with a simple list of ingredients.
  • It is Delicious: Green bean casserole can be a little on the bland side. We are kicking it up by adding bell peppers and a homemade mushroom cream sauce that takes it to the next level.
  • Cooks on the Grill: No more fighting for oven space, this casserole is easy to make on a pellet grill, gas grill or charcoal grill.

Ingredients for Green Bean Casserole

  •  fresh green beans
  • salted butter
  • white mushrooms
  • onion
  • bell pepper
  • minced garlic
  • all purpose flour
  • heavy cream
  • chicken or vegetable broth
  • kosher salt
  • fresh ground pepper
  • French fried onions

Step-By-Step Directions for Smoked Green Bean Casserole

Collage making sauce for green bean casserole with onions, bell peppers and mushrooms.
  1. Bring 4-5 cups of water to a boil in a large pan. Add green beans and cook for 8-10 minutes or until tender. Drain and set aside.
  2. Dice onions and bell peppers, mince the garlic. Add to a skillet with melted butter, cooking until vegetables are star softened.
  3. Add sliced mushrooms and continue to cook, stirring occasionally until mushrooms are softened, about 3 – 5 minutes.
  4. Add remaining butter to the skillet and sprinkle in flour. Whisk to combine and cook over medium heat for 3-5 minutes.
  5. Whisk in cream, broth, salt and pepper. Cook for 4-5 minutes, whisking continually until thickened and smooth.
Green beans in a skillet with creamy mushroom sauce.
  1. Add green beans and mix to combine.
Collage of green bean casserole, topped with onions, aluminum foil.
  1. You can leave the mixture in the skillet or place in a baking pan.
  2. Top with French fried onions and cover with foil.
Collage grilling green bean casserole on pellet grill.
  1. Place on a preheated grill for 25 minutes. Remove foil and continue to cook 10-15 minutes or until onions are browned and crispy.
Pan of green bean casserole with french fried onions on top.
  1. Remove from the grill and serve immediately.

Green Bean Casserole Notes and Tips

  • Make Ahead: Prepare the green bean casserole to the point before adding the onions. Cover tightly with plastic wrap or aluminum foil. Refrigerate up to 2 days. Add onions before baking and add an additional 5 minutes to cook time.
  • Leftovers: Store leftover green bean casserole in an airtight container in the refrigerator up to 2 days.
  • Reheat: Place green bean casserole in a non-stick pan and cook over medium heat, stirring until heated through.
  • Variations: Use a can of cream of mushroom soup in place of adding flour and heavy cream if desired.
  • More Additions: Add in shredded cheese for a cheesy green bean casserole. Sprinkle cooked and crumbled bacon over the top with the French fried onions for a loaded green bean casserole.

More Delicious Holiday Side Dishes to Make on the Grill

  • Grilled Potato Wedges make an impressive side dish for any meal on the grill and they are so easy to make in a foil packet.
  • Jalapeno Hashbrown Casserole is full of delicious flavors and the best creamy potato casserole that pairs great with turkey or ham.
  • Grilled Creamed Corn is the absolute best corn casserole that you can make on the grill. It is loaded with creamy flavor and topped with crispy bacon.
  • Smoked Chicken and Dressing is out of this world delicious. If you thought dressing couldn’t be any more delicious, try it on the grill!
Pan of green bean casserole with serving spoon.

Free up the oven space for your next holiday dinner by cooking the green bean casserole on the grill for a smoky and delicious side dish.

If you love this recipe as much as we do, please leave a comment and a five star review. Help us share on Pinterest, Instagram and Facebook!

Smoked green bean casserole with french fried onions with serving spoon in casserole.
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Smoked Green Bean Casserole

Smoked Green Bean Casserole is the ultimate side dish for holiday dinners. Made with fresh green beans and a homemade mushroom sauce that is loaded with flavor. Easy to make on the grill!
Prep Time15 minutes
Cook Time55 minutes
Total Time1 hour 10 minutes
Course: Side Dishes
Cuisine: American
Keyword: Green bean casserole Traeger grill, grilled green bean casserole, Thanksgiving side dish on the grill
Servings: 6 Servings
Calories: 366kcal
Author: Milisa

Ingredients

  • 1 pound fresh green beans washed, trimmed and cut in half
  • 4 tablespoons butter divided use
  • 1 cup diced onion
  • 1 cup diced bell pepper
  • 1 tablespoon minced garlic
  • 8 ounces white mushrooms washed and sliced
  • 1 tablespoon all purpose flour
  • 1 cup heavy cream
  • ¾ cup chicken or vegetable broth
  • 1 teaspoon kosher salt
  • 1 teaspoon fresh ground pepper
  • 1 cup French fried onions

Instructions

  • Preheat grill to 350°.
  • Bring 4 cups of water to a boil in a large pan. Add green beans and cook for 8-10 minutes or until tender. Drain and set aside.
  • Add onions, bell peppers and garlic to a skillet with 2 tablespoons butter, cook over medium- high heat until vegetables are star softened.
  • Add mushrooms and continue to cook, stirring occasionally until mushrooms are softened, about 3 – 5 minutes.
  • Add remaining 2 tablespoons of butter to the skillet and sprinkle in flour. Whisk to combine and cook over medium heat for 3-5 minutes.
  • Whisk in cream, broth, salt and pepper. Cook for 4-5 minutes, whisking continually until thickened and smooth.
  • Add green beans and mix to combine.
  • Leave the mixture in the skillet or place in a baking pan that you don't mind placing on the grill.
  • Top with French fried onions and cover with aluminum foil.
  • Grill for 25 minutes. Remove aluminum foil and continue to cook 10-15 minutes or until onions are browned and crispy.
  • Remove from grill and serve immediately.

Notes

  • Make Ahead: Prepare the green bean casserole to the point before adding the onions. Cover tightly with plastic wrap or aluminum foil. Refrigerate up to 2 days. Add onions before baking and add an additional 5 minutes to cook time.
  • Leftovers: Store leftover green bean casserole in an airtight container in the refrigerator up to 2 days.
  • Reheat: Place green bean casserole in a non-stick pan and cook over medium heat, stirring until heated through.
  • Variations: Use a can of cream of mushroom soup in place of adding flour and heavy cream if desired.
  • More Additions: Add in 1 cup shredded cheese for a cheesy green bean casserole. Sprinkle 4 slices cooked and crumbled bacon over the top with the French fried onions for a loaded green bean casserole.
  • Nutrition

    Serving: 1g | Calories: 366kcal | Carbohydrates: 23g | Protein: 9g | Fat: 28g | Saturated Fat: 15g | Polyunsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 81mg | Sodium: 528mg | Fiber: 4g | Sugar: 8g

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    One Comment

    1. This is grilled, not smoked. Glad I read through the recipe before I sent it to my friends who have a smoker. Their time would have been wasted just like mine was. Perhaps you should rename this.