🦀 Easy Crab Stuffed Mushrooms

Having grown up in New England, I’ve always had a soft spot for anything seafood-related. Unfortunately, that love affair can get expensive fast—unless you learn how to stretch ingredients.

That’s where canned crab meat comes in. It’s affordable, easy to find year-round, and surprisingly tasty when dressed up just right.

Of course, if you’re lucky enough to live near a seafood market, fresh crab will elevate the flavor even more.

And here’s a little frugal tip from someone who knows: Lobster bodies and legs (not the claws) are often sold cheaply (we’ve scored them for as little as 25¢ each!).

A little lobster meat thrown into the mix takes these to another level of decadence without blowing your budget.

Whether you’re using canned crab or going full fancy with fresh seafood, these buttery, savory, stuffed mushrooms are ridiculously easy to make and taste like they belong at a fancy party (without the fancy price tag).

🍄 Why You’ll Love This Recipe

• Budget-friendly but feels gourmet
• Quick prep—ready in under 30 minutes
• Great for parties, holidays, or just a seafood fix
• Easily adaptable (try shrimp, lobster, or even imitation crab)

🛒 Ingredients for Homemade Crab Stuffed Mushrooms

6–9 large white or baby bella mushrooms
3 slices Swiss cheese (divided)
2 Tbsp grated Parmesan cheese
½ sleeve Ritz crackers, crushed
½ stick butter (4 Tbsp)
2–3 Tbsp crab meat (canned or fresh), use the rest to make crab rangoons
3 Tbsp chopped red onion
½ tsp Old Bay Seasoning
1 tsp minced garlic

Optional Topping:

2 Tbsp melted butter mixed with ¼ tsp minced garlic for drizzling before baking

🔪 Instructions

1. Preheat oven to 350°F.
2. Wash the mushrooms and gently remove the stems. Set caps aside and finely chop the stems.
3. Melt butter in a medium saucepan.
4. Sauté the chopped stems and onion until softened (onions should be translucent).
   
5. Add crab meat. Stir and sauté for 30 seconds.
6. Add garlic and Old Bay seasoning. Mix well.
7. Stir in crushed crackers. Let it absorb for a minute.
8. Chop up 1 slice of Swiss cheese and stir it into the mixture along with the Parmesan.
   
9. Stuff each mushroom cap with the mixture, pressing it in gently.
   
10. Top each with a small square of the remaining Swiss cheese slices.
11. (Optional but recommended!) Drizzle melted garlic butter over the tops.
12. Bake for 6–10 minutes or until cheese is melted and bubbly.

🧊 Storage & Reheating Tips

• Make-Ahead: Prepare and stuff the mushrooms, then refrigerate until ready to bake.
• Leftovers: Store in an airtight container for up to 3 days. Reheat in a toaster oven or air fryer for best texture.
• Freezer-Friendly? Not really. The texture of mushrooms tends to get weird after freezing.

🧂 Ingredient Swaps & Substitutions

• No crab? Try shrimp or finely chopped imitation crab.
• No Swiss? Provolone or mozzarella work well too.
• Want it spicier? Add a dash of cayenne or a squirt of sriracha to the filling.

💸 Budget101® Price Breakdown: Crab Stuffed Mushrooms

🧾 Total Cost: $3.63 (Serves 3–4 as appetizers)

🤔 FAQ

Can I use fresh crab meat instead of canned?
Absolutely! It will taste even better. Just make sure it’s fully cooked before adding.

What kind of mushrooms should I use?
Large white mushrooms or baby bellas work best for stuffing. Pick ones that are roughly the same size.

Can I make these vegetarian?
Sure—leave out the crab and add sautéed spinach, chopped walnuts, or even artichokes instead.

🧑‍🍳 Pro Tips

• Don’t overbake—mushrooms release moisture and will get soggy if left in too long.
• Want extra crispy tops? Broil the last 1–2 minutes.
• Hosting a party? Double the batch—they disappear fast!

Easy Crab Stuffed Mushrooms Print Recipe Now

Easy Crab Stuffed Mushrooms

Budget101.com by Melissa 'Liss' Burnell

These buttery crab stuffed mushrooms are a budget-friendly appetizer that tastes gourmet. Quick to prep, easy to bake, and loaded with savory seafood flavor—perfect for holidays, parties, or whenever you need a simple show-stopper.

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Prep Time 10 minutes mins

Cook Time 15 minutes mins

Total Time 25 minutes mins

Course Appetizer

Cuisine American

Servings 4

Calories 180 kcal

Equipment

• ▢
  Baking tray
• ▢
  Small Saucepan
• ▢
  Knife & Cutting Board
• ▢
  spoon

Ingredients

  

.5x1x2x3x

• ▢ 6-9 large mushrooms
• ▢ 3 slices Swiss cheese (divided)
• ▢ 2 Tbsp Parmesan cheese
• ▢ ½ sleeve Ritz crackers (crushed)
• ▢ ½ stick butter (4 Tbsp)
• ▢ 2-3 Tbsp crab meat (canned or fresh)
• ▢ 3 Tbsp red onion (chopped)
• ▢ ½ tsp Old Bay Seasoning
• ▢ 1 tsp minced garlic
• ▢ 2 Tbsp melted butter + ¼ tsp minced garlic (for drizzling)

Instructions

 

• Preheat oven to 350°F.
• Gently wash mushrooms and remove stems. Set caps aside. Chop stems finely.
  6-9 large mushrooms
• In a medium saucepan, melt butter. Add chopped stems and red onion; sauté until soft.
  ½ stick butter

  3 Tbsp red onion
• Stir in crab meat and cook for 30 seconds. Add garlic and Old Bay seasoning.
  2-3 Tbsp crab meat

  ½ tsp Old Bay Seasoning

  1 tsp minced garlic
• Add crushed Ritz crackers and stir well.
  ½ sleeve Ritz crackers
• Chop 1 slice of Swiss cheese and stir it into the mixture along with Parmesan cheese.
  3 slices Swiss cheese

  2 Tbsp Parmesan cheese
• Spoon filling into mushroom caps, pressing gently.
• Top each with a square of the remaining Swiss cheese.

Optional: drizzle melted garlic butter over each mushroom.

• Bake at 350°F for 6–10 minutes, or until cheese is melted and bubbly. Serve warm.

Equipment

Baking tray

Small Saucepan

Knife & Cutting Board

spoon

Notes

🍽 Ingredient Substitutions:
Swiss cheese → Provolone or mozzarella

Crab → Imitation crab, shrimp, or finely chopped lobster meat

Ritz crackers → Panko or crushed saltines

Old Bay → Cajun seasoning for a spicier kick

💡 Recipe Notes & Bonus Tips:
For extra crispiness, broil the mushrooms for 1–2 minutes at the end.

Great for make-ahead: prep and refrigerate up to 24 hours before baking.

Don’t overbake! Mushrooms release moisture if cooked too long.

Pairs beautifully with garlic aioli, lemon wedges, or a splash of hot sauce.

Recipe Size Alteration Note

If you altered the ingedients above by doubling or tripling the recipe, you may also need to change the pan/dish size and adjust the cooking/baking time.

Nutrition

Serving: 2gCalories: 180kcalCarbohydrates: 3gProtein: 7gFat: 16gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.5gCholesterol: 47mgSodium: 220mgPotassium: 155mgFiber: 1gSugar: 1gVitamin A: 487IUVitamin C: 2mgCalcium: 157mgIron: 0.4mgNet Carbs: 2g

Tried this recipe?Mention @Budget101com or tag #Budget101com!

If you’ve ever needed a quick, elegant appetizer that makes you look like a kitchen rockstar, this is it.

Crab stuffed mushrooms are always a hit, and this version makes them cheap, easy, and totally foolproof. If you’re curious about what kind of crab ends up in those little cans, check out NOAA: Blue Crab Facts.

Got leftovers? Good luck. 😄