Hey there, foodies! Today, I'm stoked to share with you a mouthwatering recipe for a mushroom and spinach casserole using canned mushrooms. And guess what? I'm a canned mushroom supplier, so I know a thing or two about these delicious fungi.
First off, let's talk about why canned mushrooms are a game - changer. They're super convenient, always available, and they have a long shelf - life. You don't have to worry about them going bad quickly like fresh mushrooms. Plus, they're pre - cooked to some extent, which means less time in the kitchen for you.
Now, let's get to the recipe. For this mushroom and spinach casserole, you'll need the following ingredients:
- Two cans of your favorite canned mushrooms. You can check out our Canned Champignon or Mushroom in Tins options. They're both top - notch!
- A 10 - ounce package of frozen spinach, thawed and squeezed dry.
- One small onion, finely chopped.
- Two cloves of garlic, minced.
- Half a cup of shredded mozzarella cheese.
- Half a cup of shredded cheddar cheese.
- A quarter cup of grated Parmesan cheese.
- One egg, beaten.
- A quarter cup of breadcrumbs.
- Two tablespoons of butter.
- A teaspoon of salt.
- A half - teaspoon of black pepper.
- A pinch of nutmeg.
Alright, let's start cooking!
Step 1: Prepare the Mushrooms and Onions
Open the cans of mushrooms and drain them well. You can give them a quick rinse under cold water too, just to get rid of any excess brine. In a medium - sized skillet, melt the butter over medium heat. Add the chopped onion and sauté until it turns translucent, which should take about 3 - 4 minutes. Then, add the minced garlic and cook for another minute. Now, throw in the drained mushrooms and cook for about 5 minutes, stirring occasionally. This will let the flavors meld together nicely.
Step 2: Combine with Spinach
In a large bowl, place the squeezed - dry spinach. Add the cooked mushroom and onion mixture to the bowl. Mix them well. Now, add the beaten egg, salt, black pepper, and nutmeg to the bowl. Stir everything together until it's evenly combined.
Step 3: Add the Cheeses
Add the shredded mozzarella, shredded cheddar, and grated Parmesan cheeses to the bowl. Mix again until the cheeses are well incorporated into the mushroom and spinach mixture. The cheeses will give this casserole that rich, gooey goodness we all love.
Step 4: Prepare the Baking Dish
Preheat your oven to 375°F (190°C). Grease a 9x9 - inch baking dish with a little bit of butter or non - stick cooking spray. Pour the mushroom and spinach mixture into the greased baking dish. Spread it out evenly so that it covers the bottom of the dish. Sprinkle the breadcrumbs on top of the mixture.
Step 5: Bake the Casserole
Pop the baking dish into the preheated oven and bake for about 30 - 35 minutes, or until the top is golden brown and the casserole is bubbling around the edges. You'll know it's ready when a toothpick inserted into the center comes out clean.
Step 6: Let it Rest
Once you take the casserole out of the oven, let it rest for about 5 minutes before serving. This allows the flavors to set and makes it easier to cut into slices.
Now, isn't that easy? This mushroom and spinach casserole is not only delicious but also a great way to use up those canned mushrooms. It's perfect for a weeknight dinner or even as a side dish for a weekend gathering.


If you're a restaurant owner, a caterer, or just someone who loves cooking in bulk, you might be interested in buying our canned mushrooms in larger quantities. We offer high - quality Canned Champignon, Mushroom in Tins, and Mushroom in Bottles. Our mushrooms are sourced from the best farms and processed with the utmost care to ensure maximum flavor and freshness.
Whether you're making this mushroom and spinach casserole or other mushroom - based dishes, our canned mushrooms will take your recipes to the next level. If you're interested in purchasing our products for your business or personal use, feel free to reach out. We'd love to have a chat about your needs and how we can supply you with the best canned mushrooms on the market.
In conclusion, this mushroom and spinach casserole is a winner. It's easy to make, full of flavor, and uses the wonderful ingredient that is canned mushrooms. So, go ahead and give this recipe a try, and don't forget to check out our canned mushroom options. You won't be disappointed!
References
- "The Joy of Cooking" by Irma S. Rombauer, Marion Rombauer Becker, and Ethan Becker.
- "Better Homes and Gardens New Cook Book" by Better Homes and Gardens.
