Description
The best green bean casserole recipe from scratch using fresh green beans, onions, and mushrooms. This homemade Southern green bean casserole skips canned soup and store-bought fried onions for a truly made-from-scratch holiday side dish.
Ingredients
- 2 tbsp butter, salted
- 8 oz white mushrooms, sliced
- 1/2 small yellow or Vidalia onion, sliced into thin strips
- 2 cups whole milk
- 2 tbsp corn starch
- 1/2 tsp salt
- 1/4 tsp black pepper
- 4 tbsp soy sauce, low sodium
- 8 cups cut green beans (fresh or frozen)
- Homemade French Fried Onions:
- 1/2 small yellow or Vidalia onion, sliced into thin strips
- 1 cup all purpose flour
- Oil for frying (vegetable, canola, or peanut)
Instructions
1. Preheat oven to 350°F.
2. In a sauce pan, add green beans and cover with water.
3. Place sauce pan with green beans on the stove and turn on high. Once boiling, reduce heat to low-medium and cook until fork tender, about 15 minutes.
4. Drain cooked green beans and place in a greased 13″ x 9″ baking dish, set aside.
5. Slice the mushrooms and onion.
6. In a large skillet, melt butter on medium heat. Add sliced mushrooms and half of the sliced onions. Cook until mushrooms are soft and onions are translucent, about 5 minutes.
7. In a measuring cup, combine milk, cornstarch, low-sodium soy sauce, salt, and pepper. Whisk to prevent lumps.
8. Pour the milk mixture into the skillet with mushrooms and onions. Stir regularly until thickened, about 5–10 minutes.
9. Once thickened, turn off heat and pour the mixture over the green beans. Stir gently to coat.
10. Bake in preheated oven for 20 minutes.
11. While casserole bakes, prepare homemade French fried onions. Fill a skillet with 1/2 inch of oil and heat on medium-high.
12. Toss reserved sliced onions in flour until coated.
13. Fry onions in hot oil until golden brown. Remove and drain on paper towels.
14. After 20 minutes, remove casserole from oven and top with fried onions. Let cool 5 minutes before serving.
Notes
If you don’t want to make your own French fried onions, substitute 2 1/2 cups of store-bought crispy onions.
If using store-bought onions, sprinkle them on after baking, then return the casserole to the oven for 15 more minutes until browned.
Omit the salt if using regular soy sauce instead of low-sodium.
This makes a perfect side dish for holidays like Thanksgiving or Christmas.