Smoked Green Bean Casserole: A Fresh Twist on a Comfort Food Classic
There’s something about the aroma of smoky vegetables that just makes everything feel a bit more special. That’s one reason I’m a huge fan of smoked green bean casserole. It takes the comfort and nostalgia of the classic holiday side dish and boosts it with a hit of woodsy flavor. Over time, this version has become one of my go-to recipes for Thanksgiving, backyard barbecues, or any meal when I want something a little unexpected on the table.
One of the best things about this smoked green bean casserole is how it brings together everyday ingredients and gives them a brand new vibe. Whether you use a pellet grill, charcoal smoker, or even your regular grill set up for indirect heat, you’ll get that mellow smoke blending with savory mushrooms, sweet onions, and tender green beans. The process is surprisingly straightforward. The end result always earns plenty of compliments and empty plates.

Why Smoked Green Bean Casserole Is Totally Worth Trying
- Everyday ingredients, awesome flavor boost. You don’t need anything too fancy, just fresh or canned green beans, mushrooms, onions, a bit of cheese, and the classic fried onions. The smoker does the heavy lifting with flavor.
- Flexibility for your setup. Got a dedicated pellet smoker? Awesome. Only have a regular grill and some wood chips? That works too. This recipe adapts to what you’ve got.
- Comfort food meets cookout vibes. Adding smoky flavor to this staple makes it right at home at both holiday dinners and summer gatherings.
- Nice leftovers, if there are any left! Even if you make a double batch, this casserole stands up well for reheating the next day.
But what really makes this casserole special is how easily you can customize it. The base recipe sets you up for plenty of creativity—add more varieties of mushroom, switch out the cheese, or even toss in some roasted garlic for extra depth. If you want to make it a meal, just throw in some diced cooked chicken or turkey before smoking. The possibilities are wide open, and the smoky background ties it all together in a way that just feels right, no matter the occasion.
Smoked Green Bean Casserole Ingredients
You can mix and match a bit depending on what you have, but here’s my usual shopping list for an 8×8 or 9×9-inch casserole dish:
- 1 to 1 ½ pounds fresh green beans, trimmed (or about 2 cans, drained)
- 1 tablespoon olive oil or butter
- 8 ounces mushrooms, sliced
- 1 small yellow onion, diced
- 2 to 3 cloves garlic, minced
- 1 can (10.5 ounces) cream of mushroom soup (or homemade if you want to go the extra mile)
- ½ cup whole milk or heavy cream
- 1 cup shredded sharp cheddar cheese
- ½ teaspoon black pepper
- ½ teaspoon kosher salt
- 1 teaspoon Worcestershire sauce
- ¾ cup French fried onions (plus extra for topping)
- Optional: ½ teaspoon smoked paprika for an extra kick
For the curious, you can substitute with other soup bases—cream of chicken, celery, or even a rich, homemade white sauce. Changing the cheese is another great way to change the flavor profile. Swiss, Gruyere, or even pepper jack each give the casserole a slightly different character. If you’re looking for a plant-based option, use a dairyfree cheese and a nondairy cream soup to keep the texture creamy and rich without any animal products.
How to Make Smoked Green Bean Casserole
1. Prep the Beans
If you’re using fresh beans, blanch them in boiling salted water for about 3-4 minutes until they brighten up. Then drain and drop them into an ice bath to stop the cooking. If you’re using canned, just drain them. Either way, pat them dry with a clean towel. This helps the casserole keep from getting watery.
2. Sauté Mushrooms and Onions
In a skillet over medium heat, warm the oil or butter. Add the mushrooms and cook until they start to brown, about 4-5 minutes. Toss in the onions and cook another 2-3 minutes until soft. Stir in the garlic for a final 30 seconds until fragrant, but don’t let it get too dark.
3. Bring the Mixture Together
In a big mixing bowl, combine the sautéed veggies, green beans, cream of mushroom soup, milk, cheese, black pepper, salt, Worcestershire sauce, and smoked paprika if you’re using it. Fold in about ¾ cup of fried onions. Make sure everything gets evenly coated. At this step, you can add extra spices, chopped fresh herbs like thyme or parsley, or some red pepper flakes for a mild kick.
4. Assemble and Prep for Smoking
Grease your casserole dish and spoon in the green bean mixture. Smooth it out and top with some extra cheese if you’re a fan. Cover tightly with aluminum foil. This keeps it from drying out while the smoke works its magic. If you prefer a crustier casserole, you can leave it uncovered for the last 20 minutes in the smoker.
5. Fire Up the Smoker
Preheat your smoker or grill to 225°F to 250°F. Any mild wood works, but I love hickory or pecan for veggies. Set the casserole over indirect heat with the lid closed. Let it smoke for at least 45 minutes, or up to 1½ hours for even deeper flavor. The texture will stay creamy and the topping gets extra savory from the smoke. Throughout the cook, you can check it once, but resist lifting the lid too much to keep the smoke contained.
6. Finish with Crispy Onions
Uncover the casserole and sprinkle the rest of the fried onions on top. Slide the dish back in, uncovered, for another 20-25 minutes until the top is golden and everything is bubbling. If you want a browner finish, you can pop it under the broiler for just a minute or two at the very end. Watch closely so it doesn’t burn.
7. Cool a Bit and Serve
Cool for about 10 minutes before serving. The casserole will thicken as it sits, making it a lot easier to scoop out tidy servings. For an extra pop of color, sprinkle with chopped chives or parsley right before serving.
Tips, Swaps, and Shortcuts
- Swap in frozen green beans if that’s what you have. Just thaw and drain them well to avoid excess moisture.
- Homemade mushroom soup is awesome, but canned makes this super easy. Both work well after a trip through the smoker.
- Add chopped cooked bacon or diced ham for an extra savory note. I’ve even tried crumbling cooked sausage on top.
- Panko bread crumbs mixed with a touch of melted butter and smoked paprika work as an alternative topping if you’re low on fried onions.
- You can mix everything the night before, then just smoke and finish with the onions before serving. This is pretty handy for busy holiday prep.
- If your smoker runs a little hot or you’re in a rush, crank the heat to 275°F and cut the smoking time down a bit. You’ll still get lots of that great flavor.
- Feel free to try adding a few different types of mushrooms—baby bellas, cremini, or even wild mushrooms—each contributes a unique flavor to the dish. Mixing cheeses can also give the casserole a deeper flavor; try a blend of cheddar and mozzarella for extra gooeyness. If you want it spicy, stir in some diced jalapeño or a pinch of cayenne.
- For a healthier twist, use lowfat milk and a reduced-fat cheese. You can even substitute Greek yogurt for some of the soup for a protein boost and tangy flavor.
Serving Suggestions
- Pairs perfectly with smoked turkey, ham, brisket, or even grilled chicken.
- Ideal for potlucks and family dinners. Just keep it warm in a low oven if you’re transporting it.
- A sprinkle of fresh parsley or chives adds a nice pop of color before serving. For even more visual appeal, garnish with a few whole green beans laid across the top.
- Try serving with a lemon wedge for anyone who likes a bit of bright acidity with their smoky flavors.
- This casserole makes a great next-day lunch, reheated and served alongside a crisp green salad. The smoky flavor actually becomes more pronounced after a day in the fridge, so don’t be afraid to make extra.
Frequently Asked Questions
Q: Can I use another type of soup?
Absolutely. Cream of chicken or even cream of celery both work if you want a slightly different take. Mushroom is classic, but feel free to experiment. You can also make your own soup base by whisking milk with roux, sautéed mushrooms, and spices, letting you control the thickness and sodium.
Q: How do I keep the casserole from getting soggy?
Make sure the beans are dry after blanching or draining. Also, avoid overloading it with liquid—add milk or cream slowly and adjust as needed. For especially juicy mushrooms, sauté them until the liquid evaporates before mixing in.
Q: Do I need a dedicated smoker?
Nope! Any grill set up for indirect heat with a packet of wood chips will give you nice smoky flavor. Just keep the temperature low and the lid closed as much as possible. If you’re using a charcoal grill, try putting the coals to one side and setting the casserole over the cooler part, adding soaked wood chips to the hot coals for a smoke kick.
Q: Can I prep this ahead?
Yes, you can make the casserole and refrigerate it (unbaked and without the fried onion topping) up to one day ahead. Smoke and finish with the topping right before serving. Letting all the flavors mingle overnight actually helps the dish taste even better.
Q: What’s the best way to store leftovers?
Store in an airtight container in the fridge for up to three days. Reheat in a low oven or microwave until warmed through. The topping won’t be quite as crunchy, but the flavors only get better. For the crunchiest leftover topping, you can add a fresh sprinkle of fried onions after reheating.
Give It a Try and Make It Your Own
Smoked green bean casserole is a fun way to put a new spin on a classic. Whether you want something different for a holiday table or just want to jazz up Tuesday dinner, this recipe is worth checking out. I’d love to hear how your version turns out, so feel free to drop your tweaks, twists, or tips in the comments. Here’s to smoky, cheesy goodness in every bite! Remember, the best part about this casserole is making it your own. Experiment, swap things in and out, and make it the dish that fits your gathering. Your guests—or even just your family at Tuesday dinner—will definitely appreciate the extra flavor and thought you put in.