While they might vary if you’ve cooked the mushrooms prior to freezing them, raw frozen mushrooms should be pretty much the same (quantity-wise) as their fresh brethren. No recipe conversions should be necessary.

Keep in mind that mushrooms that have been frozen will be much softer than fresh once thawed & can be hard to caramelize. This may make them unsuitable for some recipes where you want to serve them as a prominent side dish, but they’re great for use as an ingredient in sauces, soups, baked dishes, etc.

– Question Submitted by Lynn