Green Bean Casserole

Green bean casserole is a creamy baked dish of tender green beans bound together with a mushroom sauce and topped with crispy fried onions. The casserole comes together in minutes and bakes until bubbling and golden, making it a reliable side dish for any table.

Ingredients for Green Bean Casserole

Fresh green beans provide the main vegetable and need blanching first so they cook through without turning the dish watery. Cream of mushroom soup acts as the binding sauce and brings savory depth. Milk thins the soup to a pourable consistency. Garlic, salt, and black pepper season the filling. Fried onions scattered on top crisp up in the oven and give textural contrast to the soft beans. A small amount of butter helps the onions brown and prevents sticking.

Why This Green Bean Casserole Works

Blanching the green beans before baking stops them from releasing water into the casserole as it cooks. If you skip this step, the dish becomes soupy and the onions lose their crunch. The brief pre-cook also ensures the beans finish tender at the same time the casserole is golden on top.

Cream of mushroom soup is thick enough to coat the beans but needs milk to spread evenly without clumping. The ratio of one can soup to one cup milk creates a sauce that bubbles gently around the edges and thickens slightly as the casserole bakes. Garlic deepens the savory flavor without being obvious.

Fried onions go on top just before baking so they stay crispy instead of turning soft and soggy. A quick toss with melted butter helps them brown and toast in the oven heat. The casserole is done when it bubbles at the edges and the onions turn deep golden.

Mistakes To Avoid

Skipping the blanch step leaves raw or undercooked green beans in the finished dish. The beans will taste tough and fibrous, and the raw vegetables release water that pools at the bottom. This makes the casserole soupy and the onion topping loses its crunch.

Adding the fried onions at the start of baking turns them soft and pale instead of golden and crispy. They absorb moisture from the hot casserole and steam instead of toasting. The topping becomes soggy and loses the textural contrast that makes this dish work.

Using a pan that is too small or too deep causes the casserole to cook unevenly and boil over. The edges brown too fast while the center stays cool, or the dish bubbles up and spills into the oven.

Draining the green beans poorly leaves water trapped in the pan. This water dilutes the sauce and makes the final dish thin and watery instead of creamy and cohesive.

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Ingredients

• 1 pound fresh green beans, trimmed
• 1 can (10.5 ounces) cream of mushroom soup
• 1 cup whole milk
• 2 cloves garlic, minced
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 2 tablespoons butter
• 2 cups fried onions

Step-by-step Instructions

1. Heat the oven to 350°F (175°C). Bring a large pot of salted water to a rolling boil.
2. Add the green beans to the boiling water and cook for 4 to 5 minutes, until they are just tender but still bright green. Drain in a colander and spread on a clean towel to cool and dry.
3. In a large mixing bowl, whisk together the cream of mushroom soup, milk, minced garlic, salt, and black pepper until smooth.
4. Add the dried green beans to the soup mixture and stir gently until all the beans are coated. Pour the mixture into the 9×13 baking dish and spread in an even layer.
5. Bake uncovered for 30 to 35 minutes, until the casserole bubbles gently at the edges and the center reaches 165°F (74°C) on an instant-read thermometer.
6. While the casserole bakes, melt the butter in a small bowl and toss it with the fried onions until evenly coated.
7. Remove the casserole from the oven and scatter the buttered onions over the top in an even layer.
8. Return the casserole to the oven and bake for 8 to 10 minutes more, until the onions turn deep golden brown. Do not skip this final step or the onions will remain pale and soft.
9. Remove from the oven and let rest for 5 minutes before serving, so the sauce thickens slightly and the casserole sets.