This Stuffed Mushroom with Crab recipe is a keto-friendly Red Lobster copycat that’s just as delicious as the original—if not better. Hot, creamy cheese and flavorful crab meat combine with the earthy power of mushrooms to make a rich and satisfying appetizer that everyone will love.
Big bonus? These bad boys are ready in 30 minutes with only 3 net carbs per serving.
Whether you’re prepping for game day, hosting a dinner party, or just need an elegant weeknight side, these keto crab stuffed mushrooms are the answer. They taste like you cooked all day but without the effort. They’re perfectly portable, perfectly pick-up-able, and perfect for literally any occasion.
Long story short: they’re happening. And you need them in your life.
Why You’ll Love This Keto Crab Stuffed Mushroom Recipe
Red Lobster Vibes, Zero Guilt All the restaurant flavor without the carbs or the wait
Ready in 30 Minutes Seriously. Faster than delivery.
Only 3g Net Carbs Per serving. You’re welcome.
Make-Ahead Friendly Prep the night before and just pop them in the oven
Crowd-Pleaser Even non-keto people will fight over these
Versatile AF Game day appetizer, dinner party showstopper, or weeknight side dish
Ingredients You’ll Need
For the Mushrooms:
- 16 large mushrooms, stems removed and discarded; caps cleaned gently with a damp cloth
For the Filling:
- 8 oz cream cheese, softened
- 2 garlic cloves, minced
- 2 tablespoons celery, finely chopped
- ¼ cup fresh parsley leaves, chopped (plus more for garnish, if desired)
- ¼ cup green onions, finely chopped
- 8 oz lump crab meat (fresh or canned—see notes)
- ¼ cup grated mozzarella cheese
- ½ cup grated parmesan cheese
- ½ teaspoon coarse salt (or more to taste)
- Melted butter for basting (optional but recommended)
How To Clean Mushrooms (The Right Way)
Before we get cooking, let’s talk mushroom prep because this matters more than you think.
DON’T rinse mushrooms under water. They’re like little sponges and will absorb moisture, making them soggy and sad.
DO use a damp paper towel or cloth to gently wipe each mushroom cap clean. Brush away any dirt or debris. That’s it. That’s the whole technique.
Remove the stems by gently twisting them off. You can save the stems for another recipe (like stock or stir-fry), but we’re not using them here.
How To Make Keto Crab Stuffed Mushrooms
Step 1: Preheat Your Oven
Set your oven to 375°F and line a baking sheet with parchment paper or lightly grease it.
Step 2: Make the Filling
In a large mixing bowl, combine the cream cheese, minced garlic, celery, parsley, green onions, mozzarella, parmesan, and salt.
Pro tip: If your cream cheese is too firm to mix easily, pop the bowl in the microwave for 30 seconds to soften it up. Then keep mixing until everything is well combined.
Once your filling is smooth and creamy, gently fold in the crab meat. You want to keep those beautiful chunks of crab intact, so don’t overmix.
Step 3: Stuff Those Mushrooms
Place your cleaned mushroom caps on the prepared baking sheet, gill-side up.
Spoon the crab filling into each mushroom cap, distributing evenly. Don’t be shy—really pack that filling in there. You want a generous mound on each mushroom.
Optional but highly recommended: Brush the outside of each mushroom with a little melted butter. This keeps them from drying out and adds an extra layer of flavor.
Step 4: Bake Until Bubbly
Bake for 20 minutes, or until:
- The filling is heated through
- The mushrooms are cooked completely
- The cheese is bubbling so deliciously you can’t take it anymore
Remove from the oven, garnish with extra fresh parsley if desired, and serve immediately.
Try not to eat all 16 in one sitting. (No judgment if you do.)
Tips For Making The Best Keto Crab Stuffed Mushrooms
Choose large, firm mushrooms. Baby bellas or white button mushrooms work great. Look for caps that are at least 2 inches in diameter so you have room for all that delicious filling.
Use quality crab meat. Fresh lump crab is ideal, but canned or imitation crab works in a pinch. Just make sure to drain it well and pick through for any shells.
Let your cream cheese come to room temperature. This makes mixing SO much easier. If you forget, microwave it for 30 seconds.
Don’t skip the butter baste. It keeps the mushrooms moist and adds richness. Trust me on this.
Taste your filling before stuffing. Everyone’s salt preference is different. Adjust seasoning to your taste.
Variations To Customize This Recipe
Make It Spicier:
Add a pinch of cayenne pepper or red pepper flakes to the filling, or top with diced jalapeños before baking.
Make It Extra Cheesy:
Add an extra ¼ cup of mozzarella or parmesan. Because more cheese is never wrong.
Swap The Protein:
Use cooked, chopped shrimp instead of crab for a different flavor profile. Or make them vegetarian by adding finely chopped spinach and artichokes.
Add Bacon:
Because bacon makes everything better. Crumble 2-3 slices of cooked bacon into the filling.
Can You Make These Stuffed Mushrooms Ahead?
YES! And honestly, you should.
Prepare the mushrooms and filling as directed, stuff them, cover tightly with plastic wrap, and refrigerate for up to 24 hours.
When you’re ready to bake, let them sit at room temperature for 10-15 minutes, then bake as directed. You might need to add 2-3 extra minutes to the baking time since they’re starting cold.
Are These Stuffed Mushrooms Freezer Friendly?
Sort of. You can freeze them, but mushrooms have a high water content and can get a little mushy when thawed.
If you want to freeze them:
- Stuff the mushrooms but don’t bake them yet
- Place them on a baking sheet and freeze until solid (about 2 hours)
- Transfer to a freezer-safe container or bag
- Freeze for up to 2 months
- Bake from frozen at 375°F for 25-30 minutes
Personally? I think they’re best fresh or refrigerated for up to a day. But if you need to meal prep for weeks ahead, freezing works.
How Many Carbs Are In Mushrooms?
Raw white button mushrooms contain about 3g total carbs and 2.3g net carbs per 100g (about 3-4 medium mushrooms).
The carbs in this recipe come primarily from the mushrooms and the small amount of vegetables in the filling. The cheese and crab meat are virtually carb-free.
Nutrition Information
Serving Size: 4 stuffed mushrooms
Servings Per Recipe: 4
- Calories: ~280
- Total Fat: 21g
- Protein: 18g
- Total Carbs: 6g
- Fiber: 3g
- Net Carbs: 3g
Note: Nutrition information is approximate and will vary based on specific ingredients used.
Serving Suggestions
These keto crab stuffed mushrooms are delicious on their own, but here are some ideas for serving them:
With lemon wedges – A squeeze of fresh lemon brightens the flavors
Over a bed of greens – Turn them into a light meal
With a glass of dry white wine – Sauvignon Blanc or Pinot Grigio pairs beautifully
Alongside other appetizers – Perfect for a keto charcuterie spread
Storage & Reheating
Refrigerator: Store leftover stuffed mushrooms in an airtight container for up to 3 days.
Reheating: Warm in a 350°F oven for 10-12 minutes, or microwave individual portions for 30-60 seconds. The oven method keeps them from getting soggy.
If You Like These Keto Crab Stuffed Mushrooms, You’ll Love:
- Keto Jalapeño Popper Stuffed Mushrooms – Spicy, creamy, and addictive
- Bacon-Wrapped Jalapeño Poppers – The ultimate game day appetizer
- Keto Spinach Artichoke Dip – Creamy, cheesy, and perfect for dipping
- Keto Cheese Balls – Retro appetizer, modern macros
Things You May Need To Make This Recipe
- Large Mixing Bowl – For combining the filling
- Baking Sheet – A rimmed sheet works best
- Parchment Paper – Keeps cleanup easy
- Small Spoon or Cookie Scoop – For stuffing the mushrooms evenly
- Pastry Brush – If you’re basting with butter (optional but recommended)
More Must-Have Keto Appetizer Recipes
If you like this keto appetizer recipe, then you need to check out these low carb favorites!
Keto Stuffed Mushrooms – You need these stuffed mushrooms in your life and at your next party. Each bacon-wrapped mushroom is perfectly portioned to pack a ton of flavor without the carbs.
Bacon-Wrapped Jalapeno Poppers – Perfectly portioned, bacon-wrapped low carb, keto appetizer for game day with 1.5 net carbs.
Buffalo Chicken Dip – Make this 4-cheese low carb dip in your slow cooker or the oven. Either way, it is guaranteed to be a game day or party hit with 2.6 net carbs per serving.
Keto Sausage Balls With Almond Flour – We’re taking sausage, almond flour, cream cheese & egg to another level with 1.4 net carbs!
Keto Crab Stuffed Mushrooms (Red Lobster Copycat)
This Stuffed Mushroom with Crab recipe is a keto-friendly Red Lobster copycat that's just as delicious as the original—if not better. Hot, creamy cheese and flavorful crab meat combine with the earthy power of mushrooms to make a rich and satisfying appetizer that everyone will love.
Ingredients
- 16 large mushrooms, stems removed, caps cleaned
- 8 oz cream cheese, softened
- 2 garlic cloves, minced
- 2 tablespoons celery, finely chopped
- ¼ cup fresh parsley, chopped
- ¼ cup green onions, finely chopped
- 8 oz lump crab meat
- ¼ cup mozzarella cheese, grated
- ½ cup parmesan cheese, grated
- ½ teaspoon coarse salt
- Melted butter for basting (optional)
Instructions
Preheat oven to 375°F. Line a baking sheet with parchment paper.
In a large bowl, combine cream cheese, garlic, celery, parsley, green onions, mozzarella, parmesan, and salt. If mixture is too firm, microwave for 30 seconds.
Gently fold in crab meat, keeping chunks intact.
Place mushroom caps on prepared baking sheet. Stuff each cap with filling, distributing evenly.
Brush mushrooms with melted butter (optional).
Bake for 20 minutes, or until filling is hot, mushrooms are cooked through, and cheese is bubbling.
Garnish with extra parsley if desired. Serve immediately.
Notes
Can be prepared up to 24 hours ahead. Refrigerate until ready to bake.
Use fresh or canned crab meat. Drain well if using canned.
Freezer-friendly for up to 2 months (though texture is best when fresh).
Nutrition Information:
Serving Size: 4Amount Per Serving: Calories: 280Total Fat: 21gCarbohydrates: 6gNet Carbohydrates: 3gFiber: 3gProtein: 18g
The Verdict
These keto crab stuffed mushrooms are everything you want in an appetizer: rich, satisfying, impressive, and ridiculously easy. They taste like you spent hours in the kitchen when really, you were in and out in 30 minutes.
Whether you’re hosting a Super Bowl party, need a fancy-looking side dish, or just want to treat yourself to something delicious without derailing your keto goals, this recipe delivers.
Make them once, and they’ll become a regular in your rotation. I’m calling it now.
Pin this recipe for later! And share it with your keto friends!
