My Slow Cooker Ultimate Green Bean Casserole recipe, made with smoky bacon and gooey Monterey Jack cheese, frees up valuable oven space because it’s made right in the Crockpot! It’s the perfect Thanksgiving side dish!
Ever since I first posted the recipe for my Ultimate Green Bean Casserole, I’ve had tons of requests for a Crockpot version. And honestly… it’s sort of a genius idea. Making it in the slow cooker frees up valuable oven space for that spatchcocked turkey.
I knew we had to make some adjustments to account for the different cooking method, but I wanted to keep the same great flavor. I think I did just that!
Can I use fresh green beans?
I get this question often over on the oven version of this recipe, and the short answer is yes. I actually prefer the texture of canned green beans, but you can use fresh or even frozen green beans in this slow cooker green bean casserole recipe.
I’d suggest blanching and draining them first to soften them up, or you’ll need to increase the cook time. Keep in mind that using fresh or frozen will also yield a firmer texture, depending on the cook time.
Green Beans – Scroll back up and check out my note about canned versus fresh and frozen green beans.
Cream of Mushroom – For me, green bean casserole just isn’t green bean casserole without some good ol’ cream of mushroom soup. If you’re feeling frisky, you can make your own. You could use cream of chicken soup if you have a mushroom allergy, but you’ll lose some of that umami flavor.
Cream of Bacon Soup – Did you just say, “Wait. There’s a cream of bacon soup?” Because I know I did the first time I heard about it. A reader mentioned using it last year, and I knew it would be perfect in this recipe. In the traditional recipe, you cook bacon and then sauté onions, garlic, and mushrooms in the bacon grease. Since we don’t have that step in this crockpot green bean casserole, adding the cream of bacon is the perfect way to not miss out on all that bacon flavor.
Bacon – One of the elements that makes this version ultimate is bacon. I used about 1/2 cup of real bacon pieces from one of those little pouches of precooked bacon, but you can make it fresh, too. You’ll need about 6 to 8 slices to make 1/2 cup of crumbled bacon.
Garlic Powder – For ease of prep, I swapped the fresh garlic for garlic powder.
Onion Powder – See note above and swap garlic powder for onion powder. 😁
Monterey Jack Cheese – I use this in my traditional green bean casserole, so I knew I wanted to use it here, too. I can usually find it shredded in the bag, but buying your own and shredding it works just fine as well. Can’t find Monterey Jack? Mozzarella, gouda, or an Italian blend should work. A little Parmesan cheese wouldn’t hurt either.
French Fried Onions – A green bean cass essential! They’re great right out of the container, but for added flavor and texture, you can pop them under the broiler for 2 to 3 minutes to toast them up before adding them to the top of the casserole right before serving. Adding them before, like during the cook time, will just make them soggy due to the moist heat method of crock pot cooking.
Slow Cooker Ultimate Green Bean Casserole
- 4 (14.5-ounce) cans cut green beans, drained
- 1 (10.5-ounce) can cream of mushroom soup
- 1 (10.5-ounce) can cream of bacon soup
- 1/2 cup crumbled cooked bacon
- 1 teaspoon onion powder
- 1 teaspoon garlic powder
- 1 cup shredded Monterey Jack cheese
- black pepper
- 1 1/2 cup French fried onions
- Spray the insert of a 4 to 6-quart slow cooker with nonstick cooking spray.
- In a large bowl, combine the mushroom soup, bacon soup, bacon, onion powder, garlic powder, and cheese. Add the green beans and fold to combine. Add salt and pepper to taste.
- Transfer the mixture to the slow cooker. Cover and cook on high for 2 to 3 hours or low for 4 to 5.
- Optional: toast the fried onions under the broiler for 2 to 3 minutes.
- Change the temperature to warm and sprinkle with the onions when ready to serve.
If nutritional values are provided, they are an estimate and will vary depending on the brands used. If calorie count and other nutritional values are important to you, I recommend grabbing your favorite brands and plugging those ingredients into an online nutritional calculator.