Green Bean Casserole from Scratch

Ingredients

• •3 tablespoons canola oil
• •1 medium onion
• •8 ounces mushrooms
• •1 tablespoon onion powder
• •1¼ teaspoons salt
• •½ teaspoon thyme
• •½ teaspoon pepper
• •⅔ cup all-purpose flour
• •1 cup milk
• •3 tablespoons sherry
• •4 cups green beans
• •⅓ cup sour cream
• •1 teaspoon paprika
• •½ teaspoon garlic powder
• •1 can cooking spray

Method

Adapted from foodista.com

1. 1Preheat oven to 400F.
2. 2Coat a 2½-quart baking dish with cooking spray.
3. 3Cook green beans in boiling salted water until crisp and tender.
4. 4Heat 1 tablespoon oil in a large saucepan over medium heat.
5. 5Add diced onion.
6. 6Cook until softened and translucent, about 4 minutes.
7. 7Stir in mushrooms, onion powder, 1 teaspoon salt, thyme and pepper.
8. 8Cook another 3 to 5 minutes.
9. 9Sprinkle ⅓ cup flour over the vegetables.
10. 10Stir to coat.
11. 11Add milk and sherry.
12. 12Bring to a simmer, stirring often to reduce flour lumps.
13. 13Stir in green beans.
14. 14Return to a simmer.
15. 15Cook, stirring, until heated through, about 1 minute.
16. 16Stir in sour cream.
17. 17Transfer to the prepared baking dish.
18. 18Whisk the remaining ⅓ cup flour, paprika, garlic powder and the remaining ¼ teaspoon salt in a shallow dish.
19. 19Add sliced onion.
20. 20Toss to coat.
21. 21Heat the remaining 2 tablespoons oil in a large nonstick skillet over medium-high heat.
22. 22Add the onion to oil.
23. 23Cook, turning once or twice, until golden and crispy, 4 to 5 minutes.
24. 24Spread the onion topping over the casserole.
25. 25Bake the casserole until bubbling, about 15 minutes.
26. 26Let cool for 5 minutes before serving.