Rice Mushroom Casserole

Prep: 10 min Cook: 60 min Serves: 6 Cuisine: American

A hearty rice casserole featuring savory mushrooms and aromatic herbs, baked to perfection for a comforting meal. This dish combines tender rice with rich beef broth and flavorful onion soup, making it ideal for family dinners or potlucks. Easily customizable with your favorite herbs and extras.

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Ingredients

  • 2 cups uncooked rice
  • 1/2 cup butter
  • 1 can beef bouillon
  • 2 cups water
  • 1 packet onion soup mix
  • 1/2 teaspoon oregano
  • 2 cans medium mushrooms
  • 1/2 teaspoon salt
  • Sprinkle of parsley

Instructions

  1. Preheat oven to 350°F (175°C).
  2. Place all ingredients in a casserole dish: uncooked rice, butter, beef bouillon, water, onion soup mix, oregano, mushrooms, salt, and parsley.
  3. Mix well to combine.
  4. Cover the casserole dish with a lid or aluminum foil.
  5. Bake in the preheated oven for 1 hour.
  6. Remove from oven, stir gently, and serve.

Tips & Substitutions

For added flavor, consider sautéing the mushrooms in a bit of olive oil before adding them to the casserole. If you don’t have beef bouillon, vegetable bouillon or chicken broth can be used as substitutes. For a creamier texture, you might add a can of cream of mushroom soup. Adjust the amount of salt based on the saltiness of your bouillon.

Serving Suggestions

This Rice Mushroom Casserole is delicious on its own, but it pairs beautifully with a fresh green salad or steamed vegetables for a complete meal. Consider serving it alongside grilled chicken or as a hearty side for beef recipes. A sprinkle of grated cheese on top before serving can enhance the flavor even more.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place in an oven-safe dish, cover with foil, and heat at 350°F (175°C) for about 20-25 minutes, or until warmed through. You can also microwave individual portions for convenience.

Nutrition & Diet Analysis (per serving)

Each serving of Rice Mushroom Casserole contains roughly 452 calories, with 35g protein, 91g carbohydrates, and 8g fat. It is an excellent source of iron (222% of the Daily Value), dietary fiber (216% of the Daily Value), and vitamin C (135% of the Daily Value). Note that it is relatively high in sodium, at 1170mg per serving (51% of the Daily Value).

452 kcal 23% DV
Protein Fat Carbs

Macronutrients

Protein 34.6g 69% DV
Total Fat 8.4g 11% DV
Carbs 91g 33% DV
Fiber 60.4g 100% DV
Sugar 3.7g 7% DV

Electrolytes

Sodium 1170.3mg 51% DV
Potassium 5000mg 100% DV
Cholesterol 1.3mg

Vitamins & Minerals

Vitamin A 68.1mcg 8% DV
Vitamin C 121.5mg 100% DV
Vitamin D 5.2mcg 26% DV
Calcium 1434.2mg 100% DV
Iron 40mg 100% DV
Diet fit High-protein High-fiber Low-fat
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use brown rice instead of white rice?

Yes, you can substitute brown rice for white rice, but be aware that brown rice takes longer to cook. You may need to increase the baking time and the amount of water in the recipe to ensure it cooks thoroughly.

What can I add to the casserole for extra protein?

To boost protein content, you can add cooked ground beef, shredded chicken, or even beans like kidney or black beans. These additions will also enhance the flavor and make the dish more filling.

Is it possible to make this dish vegetarian?

Absolutely! To make it vegetarian, simply replace the beef bouillon with vegetable bouillon or broth. You can also enhance the umami flavor by adding a splash of soy sauce or Worcestershire sauce.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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