Quick Low-Carb Stuffed Mushrooms with Sausage: The Ultimate Keto Party Appetizer

Ellie Williams
5 Min Read

Quick Low-Carb Stuffed Mushrooms with Sausage: The Ultimate Keto Party Appetizer

Low-carb stuffed mushrooms with sausage are my go-to when I need something impressive that won’t derail anyone’s diet goals.

Forget boring appetizers that leave you hungry in an hour. These cheesy, savory bites pack serious flavor while keeping carbs under 6g per serving.

Ingredients for cooking on a modern kitchen countertop featuring mushrooms in a basket, Italian sausage on a cutting board, and various other ingredients like cream cheese, garlic cloves, and red pepper flakes with daylight streaming in.
KEY INFO:
  • Prep time: 15 minutes
  • Cook time: 25 minutes
  • Total time: 40 minutes
  • Servings: 24 mushrooms (serves 8-12)
  • Difficulty level: Easy
  • Dietary tags: Low-carb, keto-friendly, gluten-free, grain-free

EQUIPMENT NEEDED:

Essential tools:
  • Large skillet
  • Baking sheet or 9×13 casserole dish
  • Mixing bowl
  • Small spoon for stuffing
Simple alternatives:
  • Use a casserole dish instead of baking sheet for easier cleanup
  • Food processor works great for chopping mushroom stems finely
  • Parchment paper saves scrubbing later
Mushroom caps preparation in a modern kitchen with red subway tiles, warm earthy color grading, and natural daylight

INGREDIENTS:

For the mushrooms:
  • 24 medium white button or cremini mushrooms (about 1.5 lbs/680g)
For the filling:
  • 1 lb (450g) Italian sausage, casings removed [turkey sausage works too]
  • 8 oz (225g) cream cheese, softened
  • 1/2 cup (50g) grated Parmesan cheese
  • 1/2 cup (60g) shredded mozzarella cheese [optional but recommended]
  • 3 cloves garlic, minced (1 tsp garlic powder works)
  • 1 tsp dried Italian seasoning
  • 1/2 tsp red pepper flakes [adjust to taste]
  • Salt and black pepper to taste
  • 2 tbsp fresh parsley, chopped [for garnish]
Crumbled Italian sausage cooking in a large stainless steel skillet with chopped mushroom stems and minced garlic in a modern kitchen with warm earthy aesthetics

METHOD:

  1. Preheat your oven to 375°F (190°C).
  2. Clean mushrooms with a damp paper towel and remove stems. Save those stems – we’re using them!
  3. Gently hollow out mushroom caps using a small spoon. You want a nice cavity for stuffing without breaking through the bottom.
  4. Finely chop the mushroom stems. This adds extra mushroom flavor to our filling.
  5. Heat your skillet over medium-high heat. Add sausage and cook for 6-8 minutes until no pink remains. Break it up with your spoon as it cooks.
  6. Add chopped mushroom stems and minced garlic to the sausage. Cook for 3-4 minutes until stems are softened.
  7. Remove skillet from heat. Drain excess grease – nobody wants soggy mushrooms.
  8. Stir in softened cream cheese until well combined. The residual heat will help it melt smoothly.
  9. Mix in Parmesan, mozzarella, Italian seasoning, and red pepper flakes. Season with salt and pepper to taste.
  10. Stuff each mushroom cap generously with the sausage mixture. Don’t be shy – pack it in there!
  11. Arrange stuffed mushrooms on your baking sheet, cavity-side up.
  12. Bake for 20-25 minutes until mushrooms are tender and tops are golden brown.
  13. Garnish with fresh parsley and serve immediately.
Modern kitchen scene with creamy sausage filling mix in a ceramic bowl, wooden spoon, and ready-to-be-stuffed mushroom caps

CRUCIAL TIPS:

For perfect results every time:
  • Don’t skip draining the sausage – excess grease makes soggy mushrooms
  • Let cream cheese come to room temperature – it mixes much easier
  • Pack filling firmly – it won’t fall out during baking
  • Watch for golden tops – that’s your visual cue they’re done
Storage magic:
  • Refrigerate leftovers up to 4 days in airtight container
  • Reheat at 350°F for 10-12 minutes – microwave makes them mushy
  • These freeze well after baking for up to 2 months
Scaling secrets:
  • Recipe doubles perfectly for parties
  • Make filling ahead – stuff mushrooms day before and refrigerate
  • Use bigger portobello caps for meal-sized portions
Common mistakes I see:
  • Overbaking turns mushrooms to mush
  • Undercooking leaves them tough and chewy
  • Not seasoning the filling enough – taste and adjust!
My favorite variations:
  • Spicy version: Add diced jalapeños and extra red pepper flakes
  • Veggie boost: Mix in chopped spinach or bell peppers
  • Turkey twist: Use ground turkey with extra herbs for lighter option
  • Dairy-free: Swap in nutritional yeast and dairy-free cream cheese
Golden brown stuffed mushrooms on a baking sheet and white ceramic dish, in a modern kitchen with red subway tile backsplash and warm color grading

These keto stuffed mushrooms disappear faster than I can make them at every gathering. The combination of savory sausage, creamy cheese, and tender mushrooms hits every comfort food craving while keeping your carbs in check.

Trust me – once you master this recipe, you’ll be the person everyone asks to bring appetizers.

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Hello, my name is Ellie Williams and I am a food blogger. I have always had a love for cooking and trying new recipes, and I love sharing my creations with others through my blog.