This crockpot dish combines green beans, cream of mushroom soup, melted cheese, and seasonings, all slow-cooked until creamy and tender. Topped with crispy onions, it delivers the familiar comforting taste you expect from the classic casserole — just prepared in a slow cooker instead of the oven.
4 cups fresh green beans, trimmed and halved (or 3 cans drained / 1 lb frozen)
2 cans (10.5 oz each) cream of mushroom soup
1 cup shredded cheddar cheese
½ cup milk
1 teaspoon soy sauce
½ teaspoon garlic powder
½ teaspoon onion powder
¼ teaspoon black pepper
1½ cups French-fried onions (divided)
2 tablespoons butter (optional, for richer flavor)
If using fresh beans, trim and cut them into 1–2 inch pieces. If using frozen beans, thaw slightly. If using canned beans, simply drain well.
In a mixing bowl, combine cream of mushroom soup, milk, cheddar cheese, soy sauce, garlic powder, onion powder, pepper, and melted butter. Stir until smooth and creamy.
Place the beans into the slow cooker. Pour the sauce mixture over the top and stir to coat evenly.
Sprinkle ½ cup of French-fried onions into the mixture. These soften during cooking and make the casserole richer.
Cover and cook on Low for 4–5 hours or High for 2–3 hours, until the beans are fully tender and the sauce is hot and creamy.
Before serving, sprinkle the remaining fried onions over the top. Cover for 5–10 minutes so they warm and crisp slightly.
Keep the crockpot on the “Warm” setting to serve directly from the slow cooker during gatherings.