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–+ servings
a small mushroom casserole in a red baking dish next to an orange napkin
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4.75 from 16 votes

Mushroom Casserole For One

A creamy single serving mushroom casserole with rice, made with plenty of mushrooms, garlic, and a rich, flavorful sauce.
Prep Time10 minutes
Cook Time40 minutes
Total Time50 minutes
Course: Main Dish
Cuisine: American
Keyword: mushroom bake, mushroom casserole, rice and mushroom casserole
Servings: 1 serving
Author: Joanie Zisk

Equipment

Ingredients

  • 1 ½ tablespoons olive oil -divided
  • ¼ cup chopped onions
  • 1 clove garlic -minced
  • 4 ounces sliced mushrooms (1 cup)
  • ½ teaspoon kosher salt -divided
  • ⅛ teaspoon black pepper
  • ⅓ cup low sodium chicken broth
  • 3 tablespoons heavy cream
  • 2 tablespoons sour cream
  • ¼ teaspoon dried rosemary
  • ¼ cup long-grain white rice
US - Metric

Instructions

  • Preheat the oven to 375°F (190°C).
  • Heat 1 tablespoon olive oil in a medium skillet over medium heat. Add the onions and cook for 2 minutes, stirring frequently until translucent. Add the garlic and cook for 30 seconds.
  • Increase the heat to medium-high and add ½ tablespoon olive oil. Add the mushrooms, ¼ teaspoon salt, and pepper. Cook for 5 to 7 minutes, stirring occasionally.
  • Pour in the chicken broth and bring to a simmer.
  • Remove from heat and stir in the heavy cream, sour cream, ¼ teaspoon salt, and dried rosemary.
  • Add the uncooked rice to a 4x6-inch or 5x5-inch baking dish.
  • Pour the mushroom sauce over the rice and stir gently. Place the dish on a rimmed baking sheet.
  • Cover tightly with foil and bake for 40 minutes. Serve hot.

Notes

  • Read through the recipe first. This dish comes together quickly, so review the steps and ingredient notes before starting.
  • Adjust seasoning as needed. Depending on how salty your broth is, you may need to add more salt when serving.
  • Skip Instant Rice. This recipe won’t work with Minute Rice or other quick-cooking varieties.

Nutrition

Serving: 1serving | Calories: 437kcal | Carbohydrates: 12g | Protein: 8g | Fat: 43g | Saturated Fat: 16g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 21g | Cholesterol: 65mg | Sodium: 1212mg | Potassium: 572mg | Fiber: 2g | Sugar: 6g | Vitamin A: 812IU | Vitamin C: 7mg | Calcium: 76mg | Iron: 1mg

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