Rice And Onion Casserole

Prep: 5 min Cook: 25 min Serves: 4 Cuisine: American

A comforting rice and onion casserole with savory mushroom and onion flavors, perfect for a quick weeknight dinner or a cozy family meal.

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Ingredients

  • 2 Tbsp. butter
  • 1/2 c. uncooked rice
  • 1/2 c. sliced mushrooms
  • 1 pkg. onion soup mix
  • 1 c. water

Instructions

  1. Heat the butter in a skillet.
  2. Saute the uncooked rice until lightly browned.
  3. Add the sliced mushrooms to the skillet.
  4. Stir in the onion soup mix.
  5. Add water to the skillet.
  6. Cover and cook over low heat for about 25 minutes.

Tips & Substitutions

For an extra flavor boost, consider adding sautéed garlic or herbs like thyme or rosemary. You can substitute brown rice for white rice, but adjust the cooking time accordingly. If you want to add protein, cooked chicken or beans can be mixed in. For a vegetarian twist, use vegetable broth instead of water.

Serving Suggestions

This Rice And Onion Casserole pairs beautifully with a fresh side salad or steamed vegetables for a complete meal. You can also serve it alongside grilled chicken or fish for added protein. For a hearty vegetarian option, consider adding a side of roasted vegetables.

Storage & Reheating

Store any leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, place in a microwave-safe dish and cover with a damp paper towel to retain moisture. Heat in short intervals, stirring occasionally, until heated through.

Nutrition & Diet Analysis (per serving)

Each serving of Rice And Onion Casserole contains roughly 654 calories, with 4g protein, 24g carbohydrates, and 60g fat. It is a good source of vitamin D (10% of the Daily Value).

654 kcal 33% DV
Protein Fat Carbs

Macronutrients

Protein 3.6g 7% DV
Total Fat 60.3g 77% DV
Carbs 24.5g 9% DV
Fiber 0.6g 2% DV
Sugar 0.5g 1% DV

Electrolytes

Sodium 439.2mg 19% DV
Potassium 85.3mg 2% DV
Cholesterol 180mg 60% DV

Vitamins & Minerals

Vitamin A 0.9mcg
Vitamin C 0.2mg
Vitamin D 2mcg 10% DV
Calcium 13.1mg 1% DV
Iron 0.9mg 5% DV
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 make this casserole in advance?

Yes, you can prepare the casserole ahead of time and store it in the refrigerator before baking. Just cover it tightly with foil. When you're ready to bake, add an extra 10-15 minutes to the cooking time to ensure it's heated through.

What can I substitute for onion soup mix?

If you don't have onion soup mix, you can create a homemade version using dried onion flakes, garlic powder, and beef or vegetable bouillon. This will give you a similar flavor profile without the packaged mix.

Can I add other vegetables to the casserole?

Absolutely! Feel free to incorporate other vegetables like bell peppers, peas, or spinach. Just make sure to adjust the cooking time slightly so that all the vegetables are tender and flavorful.

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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