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Portobello Mushroom and Wild Rice Stuffed Casserole

Portobello Mushroom and Wild Rice Stuffed Casserole
60min Total Time
6 people Servings
Medium Difficulty
Moderate Cost
350 kcal Calories

Get ready to indulge in a delightful and hearty comfort food with this scrumptious Portobello Mushroom and Wild Rice Stuffed Casserole!


Ingredients

6
  • 4 large portobello mushrooms, cleaned and stems removed
  • 1 cup wild rice, rinsed
  • 2 1/2 cups vegetable broth
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1 cup bell pepper, diced
  • 1 cup spinach, chopped
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup grated Parmesan cheese
  • 1 teaspoon dried thyme
  • 1 teaspoon dried oregano
  • 1/2 teaspoon black pepper
  • Salt to taste
  • Olive oil for drizzling

Instructions

1

Preheat your oven to 350°F (175°C).

2

In a medium pot, bring the vegetable broth to a boil and add the wild rice. Reduce to a simmer and cover, cooking for about 35-40 minutes or until tender.

3

While the rice is cooking, heat a skillet over medium heat. Add a splash of olive oil and sauté the onion and garlic until softened, about 5 minutes.

4

Add the bell pepper and spinach, cooking until the spinach wilts, about 2-3 minutes. Stir in the cooked wild rice, thyme, oregano, salt, and pepper.

5

Remove from heat and mix in both cheeses until evenly combined.

6

Stuff the portobello mushrooms with the wild rice mixture, pressing down gently to pack it in.

7

Place the stuffed mushrooms in a baking dish, drizzling a little olive oil over each mushroom.

8

Cover with foil and bake for 25 minutes. Remove the foil and bake for an additional 15 minutes, or until the mushrooms are tender and the cheese is bubbly.

9

Allow to cool slightly before serving.

Kitchen Tools

  • Medium pot
  • Skillet
  • Baking dish
  • Mixing spoon
  • Knife
  • Cutting board

Chef's Tips

Ensure the mushrooms are fresh and firm for the best texture.
Feel free to add other vegetables or herbs according to your preference.
Let the casserole rest for a few minutes before serving to enhance flavors.

Troubleshooting

If the casserole seems dry, consider adding a splash of vegetable broth before reheating.
Ensure the assembly is packed well to prevent any filling from falling out during baking.

Recipe Variations

Substitute wild rice with quinoa for a different flavor and texture.
Add cooked lentils for a protein boost and a heartier dish.

Healthy Alternatives

Use low-fat cheese or substitute with a dairy-free cheese for a lighter option.
Add more vegetables like zucchini or kale for increased nutrition.

Serving Suggestions

Serve with a side salad or steamed vegetables for a complete meal.
Pair with a light vinaigrette to balance the flavors.

Nutrition Facts

350
Calories
15g
Protein
52g
Carbs
10g
Fat
8g
Fiber
3g
Sugar
500mg
Sodium
20mg
Cholesterol

Dietary Info

Vegetarian
Gluten-free

Garnish Ideas

Top with fresh parsley or basil for a vibrant touch.
A drizzle of balsamic reduction can elevate the presentation.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat in the oven or microwave, adding a splash of broth if they seem dry.

Leftover Ideas

Chop leftover stuffed mushrooms into a salad or pasta dish for a delicious new meal.
Blend the leftovers into a hearty soup with broth and additional vegetables.

Common Mistakes to Avoid

Overcooking the rice can cause it to become mushy; ensure to follow cooking times carefully.
Not removing enough moisture from the mushrooms may result in a watery casserole.

Frequently Asked Questions

Can I make this casserole ahead of time?

Yes, you can prepare it and store it in the refrigerator for up to a day before baking.

Is this recipe vegan-friendly?

You can make it vegan by using dairy-free cheese and ensuring the wild rice is prepared with water or vegetable broth.

What can I substitute for wild rice?

Quinoa or brown rice can be great alternatives if you prefer a different grain.

How do I know when the portobello mushrooms are done?

They should be tender and juicy, with the filling hot and bubbling, typically after 40 minutes of baking.

Can I freeze the stuffed mushrooms?

Yes, they can be frozen before or after baking. Just ensure to wrap them well to prevent freezer burn.

Reviews

Emily
Apr 24, 2026
Absolutely loved this recipe! The flavors combined beautifully.
Tom
Apr 7, 2026
A delicious casserole, will definitely make it again!
Anna
May 5, 2026
So filling and comforting! Perfect for a chilly evening.
Mark
May 2, 2026
It was good, but I would add more spices next time.
Sara
Apr 20, 2026
Tasty and hearty! Everyone enjoyed it.
Jake
Apr 7, 2026
This is my new favorite recipe for weeknight dinners!
Lily
Apr 6, 2026
Great way to enjoy mushrooms! Very satisfying.
Susan
Apr 18, 2026
The mushrooms were tasty, but I expected more flavor in the rice.
Nancy
Apr 18, 2026
I made this for a potluck, and everyone loved it!
Chris
May 3, 2026
Easy to make and very filling. Will make again.
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