Recipe By MSLIB5
Published Dec 15th
Prep 15m Cook 1h Additional 8h Ready In 9h 15m
Servings 12 servings Calories 250.2

This make-ahead recipe is the elevation of the green bean casserole we all grew up with. Perfect for holiday dinners!

Recipe Ingredients

  • butter-flavored cooking spray
  • 3 large shallots
  • 1 ¼ pounds fresh green beans, trimmed and halved crosswise
  • 2 tablespoons unsalted butter
  • 1 (10 ounce) package button mushrooms, sliced
  • ⅓ cup all-purpose flour, divided
  • 1 cup half-and-half
  • 1 cup chicken broth
  • 1 teaspoon soy sauce
  • salt and ground black pepper to taste
  • 1 cup vegetable oil for frying, or as needed

Cooking Directions

  1. 1 Spray a 2 1/2-quart casserole dish with cooking spray. Mince shallots until you have 3 tablespoons; slice remaining shallots into 1/8-inch rounds. Set both aside.
  2. 2 Bring a large pot of lightly salted water to a boil. Add beans and cook until tender but still crisp, about 4 minutes. Drain, rinse, and pat dry; set aside.
  3. 3 Melt butter in a saucepan over medium heat. Add mushrooms and cook, stirring frequently, until browned, 5 to 7 minutes. Add minced shallots and cook until softened, 2 to 3 minutes. Stir in 3 tablespoons flour, then slowly add half-and-half, broth, and soy sauce. Bring to a boil while stirring.
  4. 4 Reduce heat to a simmer and stir until thickened, about 5 minutes. Stir in green beans and season with salt and pepper. Transfer to the prepared casserole dish, cover, and refrigerate 8 hours to overnight, or until ready to bake.
  5. 5 Preheat the oven to 350 degrees F (175 degrees C).
  6. 6 Remove casserole from the refrigerator and bake in the preheated oven until heated through and bubbly, about 30 minutes.
  7. 7 While the casserole is baking, dredge shallot rings in remaining flour until evenly coated.
  8. 8 Heat oil in a saucepan over medium heat. Lower shallots carefully into the hot oil, working in batches if necessary. Fry until golden brown, 1 to 2 minutes, then drain on paper towels.
  9. 9 Remove casserole from the oven and top with fried shallots.

Nutrition Facts

  • Calories 250.2
  • Carbohydrate 10.3 g
  • Cholesterol 13.1 mg
  • Fat 22.8 g
  • Fiber 2 g
  • Protein 3.1 g
  • Saturated Fat 5.1 g
  • Sodium 136.3 mg
  • Sugar 1.7 g

Chef's Notes

If you don't need to make this ahead, assemble the casserole and bake right away for just 20 minutes; We have determined the nutritional value of oil for frying based on a retention value of 10% after cooking. Amount will vary depending on cooking time and temperature, ingredient density, and specific type of oil used.


  1. 7.8.21 I followed this recipe to the letter, except for cooking the mushroom sauce for 9 minutes instead of 5. I just didn’t think it was quite thick enough, and didn’t want to end up taking a soupy casserole out of the oven. The only step I’ll probably skip in the future is frying the - Read more ...