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Introduction
Looking for the ultimate keto appetizer or snack that feels indulgent but keeps your carb count low? These Keto Meatballs Stuffed Mushrooms are your perfect match. Imagine tender mushrooms filled with juicy, seasoned meatballs, topped with melty cheese and baked until golden and bubbly—each bite is rich, savory, and ultra-satisfying.
Not only do they deliver serious flavor, but they’re also naturally low in carbs, high in protein, and perfect for keto. Whether you’re entertaining guests, prepping snacks for the week, or just want something deliciously different for dinner, these stuffed mushrooms check all the boxes. Plus, they’re gluten-free, grain-free, and incredibly customizable.
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Why You’ll Love This Recipe
Here’s why you’ll want to make this recipe again and again:
- Keto perfection: Low in carbs, high in fat and protein—ideal for staying in ketosis.
- Comfort food vibes: Meaty, cheesy, warm, and hearty—what more could you ask for?
- Versatile: Perfect as an appetizer, party snack, or even a light dinner.
- Meal-prep friendly: Easy to make ahead and reheat throughout the week.
- Crowd-pleaser: Even non-keto folks will be reaching for seconds.
The juicy meatballs and savory mushrooms pair so well together, it’s a flavor bomb in a tidy little package.
My Personal Experience
The first time I made these, it was honestly a bit of an experiment. I had some ground beef and a bunch of mushrooms that needed to be used. I didn’t feel like making full-size meatballs or another casserole, so I thought—what if I stuffed the mushrooms with meatballs instead?
The result? Total game-changer. The meat stayed juicy inside, the mushrooms soaked up the flavor, and the cheese on top pulled it all together. I ate four in one sitting and had to stop myself from eating the rest. Ever since then, these have become my go-to when I want something quick, comforting, and keto-approved.
Required Equipment
🧂 Mixing Bowl
You’ll need a mixing bowl to combine the meatball mixture. I prefer one with enough room to really get in there and mix without making a mess.
🍄 Baking Sheet or Casserole Dish
Use a baking sheet if you want to keep things spaced out, or a casserole dish if you want them snug and juicy. Either works, depending on your preference.
🧤 Parchment Paper or Foil
Makes cleanup so much easier and prevents sticking—especially if cheese melts over the edges.
🧀 Cheese Grater
If you’re using fresh cheese (which I recommend for better melt), a grater is your best friend.
🥄 Small Spoon or Scoop
Useful for scooping out the mushroom stems and filling the caps cleanly with the meatball mixture.
Ingredients & Substitutions
- 16 medium cremini or white mushrooms
These are the base of the recipe. Look for mushrooms with wide caps to hold more filling. You can use portobello mushrooms for a larger version. - 1/2 lb ground beef
Gives the meatballs richness and flavor. You can substitute with ground chicken, turkey, or sausage for different flavor profiles. - 1/4 cup grated Parmesan cheese
Adds salty, umami flavor and helps bind the meat. Swap with Pecorino Romano if you want a sharper taste. - 1 egg
Acts as a binder for the meatballs. No real substitute here without affecting texture. - 1 tsp Italian seasoning
Brings in that classic herb flavor. You can mix dried oregano, basil, and thyme if you don’t have a blend. - 1/2 tsp garlic powder
Adds savory depth. You can also use minced fresh garlic (1 clove = 1/4 tsp powder). - Salt & pepper to taste
Season based on personal preference and the saltiness of your cheese. - 1/2 cup shredded mozzarella cheese
Topping for melty, cheesy goodness. Feel free to mix in provolone, cheddar, or Monterey Jack. - 1 tbsp olive oil (optional)
Drizzle before baking for extra flavor and juiciness.
How to Make Keto Meatballs Stuffed Mushrooms
- Preheat oven to 375°F (190°C).
Line a baking sheet or casserole dish with parchment paper. - Prepare the mushrooms.
Clean the mushrooms and gently remove the stems. Use a small spoon to hollow them out slightly if needed. - Make the meatball filling.
In a bowl, mix ground beef, Parmesan, egg, Italian seasoning, garlic powder, salt, and pepper until well combined. - Stuff the mushrooms.
Take small portions of the meat mixture (about 1 tablespoon) and form into mini meatballs. Press each one gently into a mushroom cap. - Top with cheese.
Sprinkle shredded mozzarella on top of each stuffed mushroom. - Bake.
Place mushrooms on the baking sheet and bake for 20–25 minutes until the meat is cooked through and the cheese is golden and bubbly. - Let cool slightly before serving.
Garnish with chopped parsley or extra grated cheese if desired.
Tips for This Recipe
- Use a cookie scoop to portion meatballs evenly and speed things up.
- Don’t overstuff the mushrooms—too much filling can spill out as it bakes.
- Use paper towels to dry mushrooms before filling to prevent sogginess.
- Let them rest for 5 minutes after baking to help the juices settle.
Optional Additions
- Chili flakes – for a little heat.
- Chopped spinach – mix into the meatball filling for added nutrients.
- Sun-dried tomatoes – finely chopped for an extra flavor kick.
- Fresh parsley or basil – adds freshness and color after baking.
Serving Ideas
- Serve as a keto appetizer at parties or gatherings.
- Pair with a side salad or zucchini noodles for a full meal.
- Great with sugar-free marinara on the side for dipping.
- Enjoy cold as a snack or lunchbox addition the next day!
Storage Recommendations
- Fridge: Store in an airtight container for up to 4 days.
- Freezer: Freeze after baking in a single layer, then transfer to a bag. Reheat from frozen or thaw overnight.
- Reheat: Microwave for 30–45 seconds or bake at 350°F until heated through.
Frequently Asked Questions
Can I make these ahead of time?
Yes! Prep and assemble them, then bake just before serving.
Can I use another protein?
Absolutely—try ground turkey, chicken, or pork for different flavors.
Do I need to cook the meat beforehand?
Nope. The meat cooks inside the mushrooms during baking.
Can I use large mushrooms instead?
Yes! Portobellos work well if you want entree-size portions.
Nutritional Breakdown (Per Stuffed Mushroom)
- Calories: 82
- Total Carbs: 2.3g
- Net Carbs: 1.6g
- Protein: 6g
- Fat: 6g
- Fiber: 0.7g

Keto Meatballs Stuffed Mushrooms Recipe
Ingredients
- 16 medium mushrooms
- 1/2 lb ground beef
- 1/4 cup Parmesan cheese
- 1 egg
- 1 tsp Italian seasoning
- 1/2 tsp garlic powder
- Salt & pepper
- 1/2 cup shredded mozzarella
Instructions
- Preheat oven to 375°F (190°C). Line a baking sheet.
- Clean mushrooms and remove stems.
- Mix ground beef, Parmesan, egg, seasoning, garlic, salt, and pepper.
- Form small meatballs and stuff into mushrooms.
- Top with shredded cheese.
- Bake for 20–25 minutes.
- Let cool slightly before serving.
I’m so excited to hear how this recipe turned out for you! 😊 Don’t forget to follow us on Instagram and Facebook for daily keto inspiration, tasty recipes, and all the support you need to crush your goals. Want to make keto cooking even easier? Get a Keto Instant Pot Recipes Book filled with quick, delicious, and low-carb meals—perfect for busy days! Grab your copy today! 🚀

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