How To Make The Most Delicious Stuffed Portobello Mushrooms
These cheesy chicken-stuffed portobello mushrooms make a delicious meal packed with healthy ingredients and amazing flavors! They are filled with ground chicken, lactose-free high-protein cheese, Parmesan, and aromatic ghee butter. Plus, they are naturally gluten-free, low-carb, and super quick to prepare.
Stuffed mushrooms always feel a bit indulgent, don’t they? This version, using juicy portobellos filled with herby chicken mince and two kinds of cheese, is not just indulgent; itโs nourishing, low-carb, gluten-free, lactose-free, and absolutely irresistible.
I use the same mixture as my tender chicken meatballs (one of my readers’ favorites) and chicken meatballs in tomato sauce, which means you get a well-tested, foolproof base that delivers perfect texture every time.
This no-fuss, flavor-packed dinner is ideal for busy weeknights or entertaining when you want to impress with minimal effort. Serve it with roasted seasonal veggies, courgette ribbons, or a fresh side salad for a colorful, complete meal.
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Why Youโll Love This Recipe
High in protein and fiber
Naturally gluten-free, low-carb, and gut-friendly
Quick to prep, bake, and serve (under 30 minutes)
Cheesy, juicy, and full of umami flavor
Family-friendly and reheats beautifully
I tested this recipe multiple times, making minor tweaks each time to improve moisture, texture, and the balance between the filling and the mushrooms. I found the best trick is to add a little ghee to each mushroom cap before stuffing; this creates a rich, buttery base that keeps the mushrooms tender and juicy.
The Origin of Stuffed Mushrooms โ A Culinary Classic
Stuffed mushrooms trace back to Italian cuisine, where people commonly baked filled vegetables like zucchini, tomatoes, and mushrooms with herbs, cheese, and meat.
In the UK and US, stuffed mushrooms rose to popularity in the 1950s as an elegant canapรฉ, but this modern version turns them into a wholesome main dish.
Portobellos are perfect vessels. Their meaty texture and earthy flavor pair wonderfully with creamy cheeses and savory fillings. This recipe eliminates the need for bread or pasta, making it ideal for those following a gluten-free, low-carb, or keto lifestyle.
Stuffed Portobello Mushrooms Ingredients
You can find the precise measurements and full recipe below in a print-friendly format.
This recipe is beautifully simple, yet each ingredient adds flavor and nutrition.
Portobello Mushrooms
These large, mature mushrooms are delicious and rich in selenium, copper, and B vitamins. They have a dense, meaty texture and are a low-carb alternative to bread or pastry.
Chicken Mince (from my Tender Cheesy Chicken Meatballs recipe)
This recipe uses lean chicken breast (minced in a food processor) and onion; eggs, buckwheat flour, Italian herb mix, lactose-free cheese, and Parmigiano Reggiano. For measurements, see the recipe below.
Lactose-Free Cheese
Eatlean or other lactose-free cheddar options work beautifully here. They’re high in protein and calcium without upsetting sensitive stomachs. If you’re avoiding all dairy, feel free to substitute with plant-based cheese.
Parmigiano Reggiano
Naturally lactose-free, the aging process of at least 12 months adds a sharp umami flavor and helps form a golden crust. If you prefer, you can substitute a vegan hard cheese.
Ghee Butter
A lactose-free, clarified butter that brings richness and helps soften the mushrooms during baking. Ghee butter might not be the healthiest option, but it is fantastic for people with lactose intolerance, just like me.
Step-by-Step Instructions
Preheat your oven to 190ยฐC (375ยฐF) fan. Line a baking dish with parchment or lightly grease it with ghee or oil.
Wipe the portobello mushrooms with a damp cloth (do not soak). Remove the stems. Lightly salt each cap and place them gill-side up in the baking dish.
Drop a small knob of ghee (around 1/2 tsp) into each mushroom cap. This step keeps the mushrooms juicy and lets them soak up that rich, buttery flavor as they roast.
Using a spoon or an ice cream scoop, fill each mushroom with the chicken mince mixture. Press gently to shape the dome. Alternatively, you can roll the mixture into meatballs, then press them into the mushroom wells.
Sprinkle grated lactose-free cheese and Parmesan generously over each mushroom.
Place the baking dish in the center of the oven and bake for 20โ25 minutes, or until the cheese is golden and bubbling and the mushrooms are cooked through.
Serve hot with roasted vegetables, such as zucchini, roasted carrots, and red onions, or a fresh leafy salad.
Expert Tips
I wouldn’t recommend skipping the ghee; it truly makes a difference in texture.
If your chicken mince mixture is cold from the fridge, let it sit at room temperature for 10 minutes before stuffing so it bakes evenly.
For a crispy top, broil for the last 3 minutes.
Want to add more veggies? Add finely chopped spinach or grated zucchini to the chicken mixture (squeeze out any excess moisture).
Storage and Reheating
Store any leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 160ยฐC (325ยฐF) for 10โ12 minutes. These also freeze well before baking. Simply thaw and bake when ready.
Stuffed Mushrooms Variations and Substitutions
Vegetarian version: Use lentil-walnut stuffing or tofu mince with plant-based cheese.
Spicy: Add chili flakes or smoked paprika into the filling.
Low FODMAP: Use garlic-infused oil and avoid onions in the mince mix.
Dairy-Free: Use plant-based cheddar and a vegan hard cheese.
What to Serve With Stuffed Mushrooms
These are quite filling on their own, but pair beautifully with:
Roasted Mediterranean vegetables
Steamed broccoli with lemon
Herby quinoa or buckwheat
Fresh beetroot-carrot-apple salad (see my favorite recipe!)
FAQs
Can I use shop-bought chicken mince?
Definitely! I recommend lean breast mince for the best texture. Homemade is preferable as itโs juicier and less watery.
Can I make these ahead of time?
Absolutely! Stuff them ahead and refrigerate for up to 24 hours. Bake just before serving.
Do I need to pre-cook the mushrooms?
No, they cook through perfectly in the oven while the filling bakes. Just salt them lightly and use ghee to keep them from drying out.
Can I freeze them?
Yes. You can freeze them unbaked and thaw them in the fridge before baking. I wouldnโt recommend freezing baked ones, as mushrooms release water when reheated.
Are these low-carb or keto-friendly?
Yes, they are naturally low in carbs, especially if served with leafy greens or non-starchy veggies.
What can I do with the mushroom stems?
Chop them and sautรฉ with onions or add to a stir-fry or veggie broth; nothing goes to waste!
Chicken Mince Stuffed Portobello Mushrooms
Equipment
Ingredients
- 6 Portobello mushrooms large, stems removed
- 40 g Parmigiano Reggiano grated
- Ghee butter about 1/2 tsp per mushroom
- 50 g cheese Eatlean lactose-free grated
- 1 pinch Salt sea or pink, to taste
For the chicken mince:
- 400 g Chicken breasts Or use Tender Cheesy Chicken Meatballs mixture*
- 100 g cheese Eatlean lactose-free grated
- 80 g Parmigiano Reggiano grated
- 1 large Onion chopped
- 1 large Egg free range
- 1 tbsp Buckwheat flour
- 1 tsp Italian mix herbs
Instructions
- Preheat the oven to 190ยฐC (375ยฐF) fan.
- Wipe mushrooms clean with a damp cloth and remove stems.
- Lightly salt each mushroom cap and place them gill-side up in a greased or lined baking dish.
- Add a small knob of ghee butter to each mushroom.
Prepare the chicken mince:
- Add chicken fillets to a food processor along with roughly chopped onion and other ingredients.
- Pulse several times until combined.
- Spoon or scoop the prepared chicken mince mixture into each mushroom, pressing gently to fill.
- Top with grated lactose-free cheese and a sprinkle of parmesan.
- Bake for 20โ25 minutes, or until mushrooms are tender and cheese is golden and bubbling.
- Serve hot with roasted vegetables or a fresh salad.
Nutrition
Mention @deglutenistanutrition and tag #deglutenistanutrition โ youโll make my day! ๐ฟโจ
