From-Scratch Green Bean Casserole
Published Oct 11, 2026 · Updated Oct 11, 2026
About this recipe
I only post recipes that I have tried and verified and are good to my taste — all taste may vary.
Shocking blanched beans in ice water locks in the bright green color and stops them overcooking in the oven.
Ingredients
Method
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01
Heat oven to 400°F. Blanch beans in salted boiling water 4 minutes, then plunge into ice water; drain.
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02
Toss shallots in flour and salt; fry in oil over medium 4–5 minutes until golden. Drain.
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03
Melt butter, cook mushrooms 8 minutes until browned, add garlic 1 minute, stir in flour 1 minute.
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04
Whisk in broth and half-and-half; simmer until thick, 4 minutes. Season and fold in beans.
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05
Spread in a 2-quart dish and bake 15 minutes. Top with shallots and bake 5 minutes more.
Notes & swaps
- Shocking blanched beans in ice water locks in the bright green color and stops them overcooking in the oven.
- The photograph is sautéed garlic green beans, not the mushroom casserole. The fried onions and cream sauce are in the steps.
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