Easy Crockpot Green Bean Casserole with Crispy Onions
This creamy, savory crockpot green bean casserole features tender green beans and a crunchy onion topping, all made without an oven. It’s the perfect hands-off side dish for holidays or weeknight dinners.
- Prep Time: 10 minutes
- Cook Time: 3 hours 30 minutes
- Total Time: 3 hours 40 minutes
- Yield: 8 servings 1x
- Category: Side Dish
- Cuisine: American
Ingredients
Scale
- 24 ounces frozen cut green beans
- 1 can (10.5 ounces) condensed cream of mushroom soup
- ½ cup whole milk
- 1 tablespoon soy sauce
- ½ teaspoon freshly ground black pepper
- ¼ teaspoon garlic powder
- 1 container (6 ounces) French’s crispy fried onions, divided
- Optional: ½ cup shredded cheddar cheese
Instructions
- Heat a large skillet over medium heat. Add ½ cup of the crispy fried onions and cook for about 2 minutes, stirring constantly, until fragrant and slightly darker. Transfer to a small bowl and set aside.
- Reduce heat to low. In the same skillet, add the cream of mushroom soup, milk, soy sauce, black pepper, and garlic powder. Whisk until smooth and slightly warmed. Do not let it boil.
- Place the frozen green beans directly into a 5- to 6-quart slow cooker. Pour the prepared sauce over the top. Add the remaining (untoasted) crispy fried onions and stir gently until the beans are evenly coated.
- Cover and cook on low for 3 to 4 hours. Do not cook on high. Stir gently halfway through.
- About 10 minutes before serving, sprinkle the reserved toasted crispy onions evenly over the top. Cover and let warm through for about 10 minutes.
- Turn off the slow cooker and let the casserole sit uncovered for 5 minutes. Serve hot.
Notes
Do not skip the stovetop step—it prevents a watery sauce. Cook on low only; high heat will cause the sauce to separate. Add the crispy onion topping no more than 10 minutes before serving to keep it crunchy. For a dairy-free version, use dairy-free cream of mushroom soup and unsweetened oat milk. For a gluten-free version, use gluten-free cream of mushroom soup and ensure the crispy onions are gluten-free.
Nutrition
- Serving Size: 1 serving
- Calories: 180
- Sugar: 5
- Sodium: 680
- Fat: 9
- Saturated Fat: 3
- Carbohydrates: 22
- Fiber: 3
- Protein: 4
Keywords: green bean casserole, crockpot, slow cooker, Thanksgiving, side dish, easy, comfort food