Side · American

Green Bean Casserole with Mushroom Sauce

Tender-crisp beans meet a quick mushroom cream sauce and a crunchy onion topping. Fresh mushrooms give this familiar side a deeper, savory flavor.

Recipe image placeholder for Green Bean Casserole with Mushroom Sauce

Green Bean Casserole with Mushroom Sauce

15 minPrep30 minCook45 minTotal

Amounts scale with servings. Pan size and cooking time may need adjusting for larger batches.

Ingredients

Let’s make it

  1. 1

    Heat the oven to 400°F. Boil the beans in a pot of water for 5 minutes, then drain well.

  2. 2

    Melt butter in a large skillet over medium-high heat. Add mushrooms and cook for 7 minutes, until their moisture has evaporated and they begin to brown.

  3. 3

    Sprinkle flour over the mushrooms and stir for 1 minute. Slowly stir in broth, then cream, salt, and pepper. Simmer for 3 minutes until lightly thickened.

  4. 4

    Fold in the drained beans and transfer to a 2-quart baking dish. Top with crispy onions. Bake for 15 minutes, until the sauce bubbles and the onions are golden.

A few things that help

Drain the beans thoroughly to avoid a watery sauce.

If the onions brown before the sauce bubbles, loosely cover the dish with foil.

Use what you have

Thawed frozen beans work; drain them well and skip the initial boiling.

Use half-and-half instead of cream for a lighter sauce.

Your questions, answered

Can I assemble it the day before?

Prepare the beans and sauce, combine, and refrigerate covered. Add onions just before baking. A cold casserole needs extra baking time.

Can I make it without mushrooms?

Use diced onion and celery instead. Cook until softened before adding the flour; the flavor will be lighter.

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Easy ways to build a fiber-rich meal →

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Green Bean Casserole with Mushroom Sauce