Did you know that the combination of mushrooms and cream has been a culinary staple for centuries, not just for flavor but for its comforting qualities? The Vegetarian Cream of Mushroom Soup Casserole offers a unique twist on this classic, blending earthy mushrooms with creamy goodness and wholesome grains. If you're looking to elevate your meal prep game or simply want a hearty, plant-based dish, this recipe might just be what you need.
Recipe Tips and Tricks
- Gather ingredients: mushrooms, vegetable broth, heavy cream (or coconut milk), cooked rice or quinoa, and optional cheese for a creamy base.
- Sauté onions and garlic in olive oil, then add mushrooms until tender; combine with broth and cream.
- Mix in cooked rice or quinoa, season with thyme, salt, and pepper, then pour into a greased baking dish.
- Top with cheese and breadcrumbs, then bake at 350°F (175°C) for 25-30 minutes until golden and bubbly.
- Serve with a fresh salad or roasted vegetables for a balanced meal experience.
How To Make It – Recipe

To make this casserole even more delightful, you can customize it by adding your favorite vegetables or herbs. Whether served as a main course or a side dish, this casserole is sure to please both vegetarians and meat-lovers alike.
With a few simple ingredients and a little bit of time, you can create a hearty, flavorful meal that everyone will love. Additionally, using deliciously creamy mushroom soup as a base can enhance the dish's richness and flavor profile.
Ingredients:
- 2 cups mushrooms, sliced
- 1 cup vegetable broth
- 1 cup heavy cream or coconut milk
- 1 cup cooked rice or quinoa
- 1 cup shredded cheese (optional)
- 1 onion, chopped
- 2 cloves garlic, minced
- 1 tablespoon olive oil
- 1 teaspoon thyme
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 cup breadcrumbs (for topping)
Cooking Instructions:
In a large skillet, heat olive oil over medium heat and sauté the chopped onions and minced garlic until they're soft and fragrant.
Add the sliced mushrooms and cook until they've released their moisture and are tender.
Stir in the vegetable broth, cream (or coconut milk), cooked rice or quinoa, thyme, salt, and pepper, mixing well to combine all the ingredients.
Pour the mixture into a greased baking dish and top with shredded cheese (if desired) and breadcrumbs.
Bake in a preheated oven at 350°F (175°C) for about 25-30 minutes, or until the casserole is bubbly and the top is golden brown.
Extra Tips:
For an added depth of flavor, consider sautéing additional vegetables such as spinach, bell peppers, or zucchini along with the onions and garlic.
You can also experiment with different types of cheese or use a dairy-free alternative if you prefer.
To make this dish ahead of time, prepare the casserole up to the baking step, cover it, and refrigerate for up to 24 hours before baking.
This allows the flavors to meld beautifully, and it makes for a convenient meal option on busy days.
Cooking Steps
To create your delicious vegetarian cream of mushroom soup casserole, you'll start by sautéing onions and garlic until they're fragrant and golden.
Next, you'll add in sliced mushrooms and a sprinkle of thyme, letting their earthy aroma fill your kitchen.
Stir in the vegetable broth, cream, and cheese before topping it all with breadcrumbs for that perfect golden crunch as it bakes. Additionally, using savory vegetarian mushroom soup as a base will enhance the flavors and creaminess of your casserole.
Step 1. Sauté Onions and Garlic
Sizzle the onions and garlic in a splash of olive oil until they turn golden and fragrant, filling your kitchen with an inviting aroma.
Consider using sweet onions for a mild flavor or red onions for a touch of color.
Garlic not only enhances taste but also offers health benefits, like boosting your immune system.
Enjoy this savory foundation for your casserole!
Step 2. Add Sliced Mushrooms and Thyme
As you stir the sautéed onions and garlic, add the sliced mushrooms and a sprinkle of fresh thyme to the pan.
Choose a mix of sliced varieties for depth, like cremini and shiitake. The earthy flavors meld beautifully, while thyme not only enhances the aroma but also offers health benefits like anti-inflammatory properties.
Cook until the mushrooms soften, creating a savory base.
Step 3. Stir in Vegetable Broth
Pour in the vegetable broth, allowing the rich flavors to meld together seamlessly.
This nutritious addition not only enhances the soup's depth but also offers vegetable broth benefits like lower calories and increased flavor without added fats.
If you're out of vegetable broth, consider broth alternatives like mushroom or miso broth for a unique twist that keeps your casserole deliciously satisfying.
Step 4. Add Cream and Cheese
With the vegetable broth enriching the base, it's time to elevate the flavors even further by adding cream and cheese.
Choose from cream varieties like heavy cream for richness or half-and-half for a lighter touch.
Then, stir in your favorite cheese types—sharp cheddar or creamy mozzarella work beautifully.
This combination creates a luscious, velvety texture that enhances your mushroom soup casserole.
Enjoy!
Step 5. Top With Breadcrumbs and Bake
Sprinkle a generous layer of breadcrumbs over the creamy mushroom mixture, creating a delightful crunch that contrasts beautifully with the casserole's rich texture.
For added flavor, consider exploring breadcrumb variations like garlic or herb-infused options.
Once topped, pop the casserole in the oven, allowing the breadcrumbs to turn golden brown.
This final touch elevates your dish, making it a standout at any meal.
Substitution Suggestions
If you're looking to customize your Vegetarian Cream of Mushroom Soup Casserole, there are plenty of delicious substitutions that can enhance the dish.
You can swap heavy cream for coconut milk or cashew cream as dairy substitutes. For a heartier texture, try adding quinoa or lentils.
If you need vegan alternatives, replace cheese with nutritional yeast for a cheesy flavor without the dairy! Additionally, consider adding Deliciously Creamy Vegan Mushroom Soup to your casserole for an extra layer of flavor.
Serving Suggestions
As you prepare to serve your Vegetarian Cream of Mushroom Soup Casserole, consider pairing it with a fresh, crisp salad to balance the rich flavors of the dish.
For garnish options, sprinkle some fresh herbs or crunchy breadcrumbs on top.
To elevate the meal, serve it alongside roasted vegetables or garlic bread as delightful side dishes that complement the creamy casserole perfectly. Additionally, consider adding a side of vegan cream of mushroom soup for an extra layer of flavor that ties the meal together.
Make-Ahead and Storage
To make your Vegetarian Cream of Mushroom Soup Casserole even more convenient, consider preparing it ahead of time.
The make-ahead benefits are significant; you can save valuable cooking time on busy days. Additionally, this dish can be made using a creamy mushroom soup base, enhancing its flavor and texture.
For ideal freshness, store it in an airtight container in the fridge for up to three days.
If freezing, use freezer-safe containers and enjoy later without losing flavor!
How to Store and Reheat Leftovers
Once you've savored your Vegetarian Cream of Mushroom Soup Casserole, you'll want to make sure those delicious leftovers are stored properly to maintain their flavor and texture.
For effective leftover storage, place the casserole in an airtight container and refrigerate it. Additionally, mushroom soup can be frozen for longer storage if needed.
When you're ready to enjoy it again, use these reheating tips: warm it gently in the oven or microwave, stirring occasionally for even heating.
Nutrition Facts(per serving)
When you're enjoying your Vegetarian Cream of Mushroom Soup Casserole, it's good to know just what you're nourishing your body with.
Each serving offers a delightful blend of vitamins, minerals, and fiber, contributing to your overall health.
With balanced serving sizes, you'll savor the nutritional benefits without overindulging.
This dish not only satisfies your taste buds but also supports a wholesome lifestyle. Additionally, the creamy dairy-free mushroom soup is an excellent source of antioxidants, enhancing its health benefits.
Final Thoughts
As you reflect on your experience with the Vegetarian Cream of Mushroom Soup Casserole, it's clear that this dish is more than just a meal; it's a celebration of flavors and health.
Embracing vegetarian options opens doors to countless casserole variations, allowing you to customize ingredients to suit your taste.
You've created a comforting dish that's both nourishing and delicious—perfect for any occasion! Additionally, using gluten-free ingredients can enhance the dish's appeal for those with dietary restrictions.
Recipe FAQs
Can I Use Dried Mushrooms Instead of Fresh Ones?
Yes, you can use dried mushrooms instead of fresh ones! They've got concentrated flavors and longer shelf life. Just rehydrate them in warm water, and they'll add depth to your dish like fresh mushrooms would.
What Type of Cheese Works Best in This Casserole?
For your casserole, consider cheese varieties like sharp cheddar or creamy mozzarella. Sharp cheddar adds a bold flavor profile, while mozzarella brings a delightful meltiness. Mixing both can create a rich, satisfying experience in every bite.
How Long Does This Casserole Take to Cook?
You might think casseroles take forever to cook, but they typically need about 30-45 minutes at 350°F. For best results, keep an eye on it as you follow these preparation tips for perfect timing!
Is This Recipe Gluten-Free?
Yes, this recipe can be gluten-free if you use gluten-free alternatives like rice or quinoa. Just watch out for cross-contamination concerns to guarantee your dish stays safe and delicious for everyone enjoying it.
Can I Freeze This Casserole for Later?
Yes, you can freeze this casserole for later! Just follow these freezing tips: cool it completely, then store it in an airtight container. Proper casserole storage guarantees it stays delicious and ready for a quick meal later.
