Easy Cottage Cheese Stuffed Mushrooms with Spinach
These cottage cheese stuffed mushrooms are filled with spinach, garlic, Parmesan, and a creamy cottage cheese mixture, then baked until the mushroom caps are tender and the tops are lightly golden. Draining the cottage cheese and cooking the mushroom stems before filling keeps the centers creamy instead of watery, which is the main detail that makes this easy appetizer work.
Stuffed mushrooms with cottage cheese are a lighter take on the familiar cheese-filled mushroom appetizer. Instead of relying on cream cheese for most of the filling, cottage cheese gives the mushrooms a creamy texture with a little more protein, while spinach, Parmesan, garlic, and the chopped mushroom stems give the filling enough savory flavor to stand on its own.
What Makes These Stuffed Mushrooms Different
I prefer to use medium cremini mushrooms here rather than large portobellos. They are small enough to serve as an appetizer, but large enough to hold a generous spoonful of filling without collapsing in the oven.
This recipe also targets a different style of stuffed mushroom than a large stuffed portobello mushroom. These are bite-sized mushrooms meant for sharing, and the filling stays centered around cottage cheese rather than bread crumbs or cream cheese.
The moisture is the part that deserves attention. Both mushrooms and cottage cheese contain quite a bit of water. Putting them together without dealing with that moisture first can leave liquid pooling in the baking pan.
I drain the cottage cheese while preparing the other ingredients, then briefly bake the empty mushroom caps and cook the chopped stems with the spinach. What I look for is a spinach and mushroom mixture that looks moist but leaves no puddle in the skillet.
For another savory way to use cottage cheese, the same ingredient becomes the base of my cottage cheese garlic herb dip and cottage cheese ranch dip.
Ingredients You Need
Cremini mushrooms: Look for medium mushrooms that are fairly similar in size. Cremini, often sold as baby bella mushrooms in the United States, have a little more flavor than white button mushrooms, but either works.
Cottage cheese: I use 2% or 4% cottage cheese. Small-curd cottage cheese is especially convenient for stuffing because it needs very little breaking up. Drain it before mixing the filling.
Baby spinach: Spinach cooks down dramatically, so two packed cups is not excessive. Chop it roughly before adding it to the skillet.
Garlic: Two fresh cloves are enough to season the filling without overpowering the mushrooms.
Parmesan: Parmesan adds saltiness and helps the top brown in the oven.
Panko breadcrumbs: A small amount absorbs excess moisture and gives the filling more structure. This is not intended to become a bread-heavy stuffing.
Lemon zest: Just enough to lift the mushroom and cheese flavors without making the filling taste lemony.
Parsley: Fresh parsley keeps the rich filling from tasting heavy.
Olive oil, salt, black pepper, and red pepper flakes: Simple seasonings are enough because Parmesan and mushrooms already contribute plenty of savory flavor.
If you want another savory cottage cheese dinner rather than an appetizer, my cottage cheese Alfredo pasta uses the cheese very differently, while these cottage cheese egg bites show how well it works in a baked filling.
Step-by-Step Instructions
1. Prepare the mushrooms
Heat the oven to 400°F.
Wipe the mushrooms clean with a slightly damp towel. Avoid soaking them in a bowl of water. Mushrooms already contain plenty of moisture, and we do not want to add more.
Pull or gently twist out the stems. Keep the stems because they will become part of the filling.
Arrange the caps gill-side down on a parchment-lined baking sheet and brush or toss them lightly with 1 teaspoon of olive oil.
Bake the empty mushroom caps for 5 minutes. You may see a little liquid collect underneath them. Carefully drain that liquid before stuffing.
This short pre-bake is important. The mushrooms should still be firm at this stage. We are only starting the cooking process and encouraging some moisture to escape.
2. Cook the mushroom and spinach filling
Finely chop the reserved mushroom stems.
Heat the remaining teaspoon of olive oil in a skillet over medium-high heat. Add the chopped stems and cook for about 4 to 5 minutes, stirring occasionally.
At first, they will soften and release water. Keep cooking until that liquid has evaporated and the pieces begin taking on a little color.
Add the chopped spinach and cook for another 1 to 2 minutes. Add the garlic during the final 30 seconds.
The mistake to avoid is stopping as soon as the spinach wilts. Give the mixture enough time for the water released by the spinach to evaporate. The bottom of the skillet should look almost dry.
Remove from the heat and let cool for about 5 minutes.
If mushrooms are something you cook often, my mushroom risotto without cream uses the same idea of concentrating mushroom flavor, while these Greek-style marinated mushrooms take them in a completely different direction.
3. Mix the cottage cheese stuffing
Put the drained cottage cheese in a medium bowl.
If the curds are particularly large, mash them a few times with a fork. There is no need to blend the cheese completely smooth. Keeping some texture gives the filling more body.
Add the cooked spinach and mushroom mixture, 1/4 cup Parmesan, panko breadcrumbs, lemon zest, parsley, black pepper, and red pepper flakes if using.
Taste before adding much salt. Cottage cheese and Parmesan can both be salty depending on the brand.
Stir just until combined. At this point, the filling should be creamy and spoonable but not loose enough to run off the spoon.
4. Stuff and bake
Turn the mushroom caps cavity-side up.
Spoon the cottage cheese filling generously into each cap. A slight mound on top is fine, but do not press the filling down too firmly. Keeping it relatively loose helps it heat evenly.
Sprinkle the remaining Parmesan over the mushrooms.
Bake at 400°F for 13 to 16 minutes, depending on the size of the caps.
You know they are ready when the mushrooms can be pierced easily with the tip of a knife but still hold their shape. The filling should be hot through the center and the Parmesan on top should have a few golden spots.
For more color, place them under the broiler for about 1 minute at the end, watching continuously.
5. Let them rest before serving
Give the mushrooms about 5 minutes before transferring them to a serving platter.
Straight from the oven, the mushroom juices and cheese are very hot and the filling is softer. A short rest allows everything to settle while the mushrooms are still warm.
Finish with a little chopped parsley or freshly cracked black pepper if you like.
Chef Tips for Mushrooms That Aren’t Watery
Drain the cottage cheese. Even 10 to 15 minutes in a fine-mesh strainer makes a noticeable difference in the consistency of the filling.
Cook the stems until their liquid evaporates. Mushrooms often look cooked before their moisture is actually gone.
Do the same with the spinach. Wilted spinach can still hold a surprising amount of water.
Do not overcrowd the baking sheet. Leave some space between the mushrooms so hot air can circulate rather than trapping steam.
Choose mushrooms of similar size. This makes the cooking time much more predictable.
Do not overbake them. Mushrooms that stay in the oven too long continue releasing moisture and eventually lose their firm, appetizer-friendly shape.
The spinach and cheese combination also appears in very different recipes such as my spinach and goat cheese puff pastries and ricotta and spinach stuffed shells, but this version keeps the focus on mushrooms and cottage cheese.
What to Serve With Cottage Cheese Stuffed Mushrooms
These work well as a warm appetizer before dinner, as part of a holiday appetizer spread, or alongside several smaller dishes for a casual gathering.
For a larger appetizer table, pair them with creamy homemade hummus for something cool and scoopable, or make garlic butter escargots if you want another hot mushroom-friendly appetizer.
To turn them into part of a light meal, a fresh chickpea, cucumber and tomato salad gives you acidity and crunch beside the warm mushrooms. For something more substantial, the Greek-style potato salad with feta and Kalamata olives works particularly well for a buffet or family meal.
Substitutions
White mushrooms: White button mushrooms can replace cremini mushrooms with no major change to the method.
Cottage cheese: Either 2% or 4% works. If your cottage cheese contains a lot of liquid, give it extra draining time.
Spinach: Baby spinach is convenient, but mature spinach works if the tough stems are removed and the leaves are chopped.
Parmesan: Pecorino Romano can be used, but it is saltier, so reduce any added salt.
Panko: Regular dry breadcrumbs can replace panko. Start with slightly less and add enough to make the filling hold together.
Fresh parsley: Chives also pair naturally with cottage cheese and mushrooms.
For a spinach appetizer with a richer cheese filling, oysters Rockefeller with spinach and Hollandaise offers a more traditional special-occasion option.
FAQ
Can I make cottage cheese stuffed mushrooms ahead of time?
Yes. Prepare the filling and clean the mushroom caps, then refrigerate them separately in covered containers. Stuff the mushrooms shortly before baking. This helps prevent the uncooked caps from sitting against the moist filling for several hours.
Why are my stuffed mushrooms watery?
The most common causes are undrained cottage cheese, mushroom stems that were not cooked long enough, spinach that still contained excess moisture, or overcrowding the baking pan. The brief pre-bake of the empty mushroom caps also helps.
Can I use portobello mushrooms?
You can use the same flavor combination in portobellos, but the cooking time and serving style will change considerably. Large stuffed portobello mushrooms are better treated as a main dish or substantial side. This recipe is designed for smaller appetizer-size cremini mushrooms.
Do I need to blend the cottage cheese?
No. Small-curd cottage cheese works well without blending. For a finer filling, mash it with a fork. Completely blending it is unnecessary and can make the mixture looser.
Can I make these without breadcrumbs?
The breadcrumbs help absorb moisture and stabilize the cottage cheese filling. You can omit them, but drain the cottage cheese especially well and expect a softer center.
How do I store leftovers?
Refrigerate cooled mushrooms in an airtight container for up to 3 days. Reheat them on a baking sheet in a 375°F oven until hot. The oven restores the texture better than the microwave, which tends to draw more water from the mushrooms.
Suggested Posts
For more savory recipes with related ingredients, try:
Cottage cheese garlic herb dip
Easy mushroom risotto without cream
Greek-style marinated mushrooms
Spinach and goat cheese puff pastries
Ricotta and spinach stuffed shells
Easy Cottage Cheese Stuffed Mushrooms with Spinach
Ingredients
- 16 medium cremini mushrooms about 1 pound
- 1 cup 2% or 4% cottage cheese drained for 10 to 15 minutes
- 2 teaspoons olive oil divided
- 2 packed cups baby spinach roughly chopped
- 2 garlic cloves minced
- 1/3 cup finely grated Parmesan cheese divided
- 1/4 cup panko breadcrumbs
- 1 teaspoon finely grated lemon zest
- 2 tablespoons chopped fresh parsley plus more for serving
- 1/4 teaspoon kosher salt or to taste
- 1/4 teaspoon freshly ground black pepper
- 1 pinch red pepper flakes optional
Instructions
- Heat the oven to 400°F and line a baking sheet with parchment paper.
- Clean the mushrooms, remove the stems, and finely chop the stems.
- Brush the caps with 1 teaspoon olive oil and bake gill-side down for 5 minutes. Drain any released liquid.
- Heat the remaining olive oil in a skillet. Cook the chopped stems for 4 to 5 minutes until their moisture evaporates.
- Add the spinach and cook for 1 to 2 minutes. Add the garlic for the final 30 seconds, then cool for 5 minutes.
- Mix the drained cottage cheese, cooked mushroom-spinach mixture, 1/4 cup Parmesan, panko, lemon zest, parsley, salt, pepper, and red pepper flakes.
- Fill the mushroom caps generously and sprinkle with the remaining Parmesan.
- Bake for 13 to 16 minutes, until the mushrooms are tender but still hold their shape and the filling is hot.
- Broil for about 1 minute if additional browning is desired.
- Rest for 5 minutes before serving.
