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Mushroom Doria (Mushroom Rice Casserole)

Doria, a staple of Japanese home-cooking, is a marvelously comforting rice casserole covered in a bubbling layer of creamy béchamel sauce topped with a crisp sheet of browned cheese. For this recipe, I've mashed up Doria with Green Bean Casserole to come up with an easy make-ahead dish that's perfect for an autumn potluck or holiday feast.

Prep Time
10 mins
Cook Time
10 mins
Total Time
40 mins
Servings: 4 servings
Calories: 394 kcal
Course: Side Dish
Cuisine: Japanese

Ingredients

for casserole
  • 1 teaspoon cultured unsalted butter
  • 350 grams cooked rice (1 rice cooker cup)
  • 100 grams gruyere cheese (or other melting cheese, grated)
  • fried onions (for garnish)
for filling
  • 180 grams green beans
  • 1 tablespoon cultured unsalted butter
  • 100 grams onions
  • 120 grams button mushrooms
  • 100 grams shimeji mushrooms (beech mushrooms)
  • 1 teaspoon salt
for bechamél
  • 1 tablespoon cultured unsalted butter
  • 25 grams flour (about 2 ½ tablespoons)
  • 1 ½ cups milk

Instructions

    Cup of Yum
  1. Butter a 10-inch casserole dish using about a teaspoon of butter. Move the oven rack to the middle position and preheat the oven to 500 degrees F (260 C).
  2. Bring a large pot of salted water to a rolling boil and the whole green beans.
  3. Blanch the beans by bringing the water back up to a full. Drain the beans and rinse them under cold water to chill them enough to handle.
  4. Trim the stem ends off of the beans and chop them up into 1.5-inch lengths.
  5. Melt 1 tablespoon of butter in a frying pan over medium heat and sauté the onions, button mushrooms, shimeji mushrooms, and salt until the mushrooms are starting to caramelize (about 6-7 minutes).
  6. Transfer the mushrooms to a bowl and add the remaining tablespoon of butter to the pan along with the flour. Cook the roux until there are no lumps of flour, but don't let it brown.
  7. Turn down the heat and pour the milk in at once. Stir the mixture vigorously until there are no lumps of roux remaining.
  8. Turn up the heat to medium and bring the béchamel to a boil to thicken. Add the sauteed mushrooms as well as the green beans to the pan, and stir to distribute evenly.
  9. To assemble the Doria, spread an even layer of rice along the bottom of the buttered casserole dish.
  10. Top with the mushroom and green bean béchamel.
  11. Cover with an even layer of shredded cheese.
  12. Put the Doria in the oven and bake until the sauce is bubbly and the cheese has browned on top, about 15-20 minutes.

Nutrition Information

Calories 394kcal (20%) Carbohydrates 42g (14%) Protein 16g (32%) Fat 18g (28%) Saturated Fat 11g (55%) Cholesterol 54mg (18%) Sodium 714mg (30%) Potassium 475mg (14%) Fiber 3g (12%) Sugar 8g (16%) Vitamin A 902IU (18%) Vitamin C 8mg (9%) Calcium 387mg (39%) Iron 1mg (6%)

Nutrition Facts

Serving: 4servings

Amount Per Serving

Calories 394

% Daily Value*

Calories 394kcal 20%
Carbohydrates 42g 14%
Protein 16g 32%
Fat 18g 28%
Saturated Fat 11g 55%
Cholesterol 54mg 18%
Sodium 714mg 30%
Potassium 475mg 10%
Fiber 3g 12%
Sugar 8g 16%
Vitamin A 902IU 18%
Vitamin C 8mg 9%
Calcium 387mg 39%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.