
Stuffed mushrooms are a delicious and versatile vegetarian appetizer, perfect for parties, get-togethers, or even as a snack for one. They can be made with a variety of ingredients, such as cheese, breadcrumbs, herbs, and garlic, and are a great make-ahead dish. If you're looking to freeze stuffed mushrooms, there are a few methods you can try. Some people suggest freezing them uncooked and baking them straight from the freezer, while others recommend coating them in olive oil or batter before freezing to preserve their shape and texture. Here's a step-by-step guide to freezing stuffed mushrooms, along with some tips and tricks for the best results.
| Characteristics | Values |
|---|---|
| Freezing time | 1 hour |
| Storage | Place upright in a freezer-proof container, wrapped in plastic |
| Defrosting | Do not defrost before baking |
| Baking time | 35 minutes for small mushrooms, 50 minutes for larger mushrooms |
| Baking temperature | 250 degrees |
| Baking instructions | Place on a rimmed baking sheet or baking dish |
| Storage time | Up to 3 months |
| Reheating | Microwave or oven |
| Container | Airtight container, Ziploc freezer bag |
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What You'll Learn

Freeze uncooked stuffed mushrooms for up to three months
Yes, you can freeze uncooked stuffed mushrooms for up to three months. However, some people advise against this as mushrooms contain a lot of moisture, and they may become shrivelled, soggy, or lose their shape.
To freeze uncooked stuffed mushrooms, first prepare the mushrooms according to your recipe. You can blanch the mushrooms before filling them, or coat them in olive oil to help them retain their appearance. Fill the mushrooms and place them on a plate or baking sheet. Place them in the freezer for about an hour, or until very firm. Transfer the frozen mushrooms to a freezer-proof container or bag, removing as much air as possible. Label the container or bag and place it back in the freezer for up to three months.
To cook the frozen stuffed mushrooms, preheat your oven to 250 degrees Fahrenheit. Place the mushrooms on a rimmed baking sheet or in a baking dish and cook for about 35 minutes for small mushrooms, or 50 minutes for larger mushrooms. You can also defrost the mushrooms in the refrigerator before baking, but this may result in soggier mushrooms.
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Use an airtight container or Ziploc bag to store
Once the stuffed mushrooms have been frozen for an hour and are firm, you can transfer them to an airtight container or a Ziploc bag. If you are using an airtight container, place the mushrooms upright and wrap them in plastic before sealing the container. If you are using a Ziploc bag, remove as much air as possible before sealing.
Both these methods will ensure that the mushrooms remain fresh and retain their shape. You can store the mushrooms in the freezer for up to three months. When you are ready to bake them, simply remove the required number of mushrooms from the freezer and follow the recipe instructions, adding about one and a half times the original cooking time.
It is important to note that you should not defrost the mushrooms before baking as this will result in soggy stuffed mushrooms. Bake them directly from the freezer, and if you are using an oven, preheat it to 250 degrees Fahrenheit. Place the frozen mushrooms on a rimmed baking sheet or baking dish and bake for about 35 minutes for small mushrooms and 50 minutes for larger ones, or until they are hot and golden brown.
If you are short on freezer space, you can also stack the mushrooms in layers between sheets of parchment paper in an airtight container. While this method may flatten the mushrooms a bit, you can always "re-fluff" them with a fork before baking.
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Bake straight from the freezer
To bake your stuffed mushrooms straight from the freezer, first, preheat your oven to 350°F. Grease a baking sheet with cooking spray or line it with parchment paper or foil. Remove the frozen stuffed mushrooms from their freezer container and place them on the prepared baking sheet. The number of mushrooms you bake will depend on their size and how many people you are serving. As a guide, you could plan for about 4 small mushrooms per person, or 2-3 larger mushrooms.
Bake smaller mushrooms for about 15 to 20 minutes until they are hot throughout and the tops are golden brown. Bake larger mushrooms for about 30 minutes. If baking from frozen, you may need to add a bit of extra time. For example, one source suggests baking small frozen mushrooms for 35 minutes and large ones for 50 minutes. However, another source suggests that baking at 400°F for 20 minutes should be sufficient, even for frozen mushrooms. So, it may be a case of trial and error to find the ideal time and temperature for your oven and mushrooms.
Once baked, sprinkle the mushrooms with fresh parsley and serve hot.
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Reheat in the oven or microwave
To reheat your stuffed mushrooms in the oven, it is recommended that you do not defrost them beforehand. Place the frozen mushrooms in an oven-safe dish and put them in the oven as it heats up. Do not heat the oven over 325 F and check the mushrooms every 10-15 minutes until they are warmed through.
If you are short on time, you can also reheat stuffed mushrooms in the microwave. Place the mushrooms on a microwave-safe dish and cover them with a damp (not wet) paper towel. Reheat in 30-second intervals until the mushrooms are warm enough to enjoy. Be careful not to overcook.
If you are concerned about the mushrooms drying out, you can add a dish of water to the oven as it heats up to create steam. This will help to keep the mushrooms moist.
It is also possible to deep-fry frozen stuffed mushrooms, which some people find helps to maintain their shape and texture.
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Coating in olive oil helps retain their looks
Freezing stuffed mushrooms is a great way to preserve them for future use. However, mushrooms contain a lot of moisture, which can lead to sogginess when frozen and then thawed. To prevent this, it is recommended to coat the mushrooms in olive oil before freezing.
Coating the mushrooms in olive oil creates a protective barrier that helps to seal in moisture and maintain their shape during the freezing and thawing process. This simple step can make a significant difference in the final texture and appearance of the mushrooms. It helps them retain their moisture, keeping them from becoming dry and shrivelled.
To coat the mushrooms in olive oil, start by blanching the mushrooms. This will help to soften them slightly and make them more pliable. After blanching, carefully drain the mushrooms on paper towels, patting them gently to absorb any excess water. Then, take each mushroom and lightly brush or drizzle olive oil over its surface, ensuring complete coverage.
Once coated, you can proceed to fill and freeze the mushrooms. They can be stored in an airtight container or a freezer bag with the air removed. When you're ready to enjoy your stuffed mushrooms, simply bake them according to your recipe instructions, and they will taste as good as fresh!
Additionally, if you're reheating cooked stuffed mushrooms, you can also use olive oil to your advantage. Place the mushrooms on a microwave-safe dish and cover them with a damp paper towel. The olive oil on the mushrooms will help retain their moisture, and the damp paper towel will provide additional hydration during reheating. This method will help keep your stuffed mushrooms juicy and delicious!
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Frequently asked questions
You can freeze uncooked stuffed mushrooms for up to three months.
First, make space in your freezer for a small baking sheet. Line a baking sheet with parchment paper. Prepare your stuffed mushroom recipe, but do not cook them. Place them in the freezer for one hour until very firm. Then, transfer them to a freezer-proof container, wrap them in plastic, and cover them before placing them back in the freezer.
Do not defrost the mushrooms before cooking, as this will make them soggy. Place the frozen mushrooms on a rimmed baking sheet or baking dish and cook according to the recipe instructions, adding approximately one and a half times the original cooking time.

























