Ingredients

Equipment Needed

• •Rimmed baking sheet
• •10-inch skillet
• •Small spoon for hollowing mushrooms
• •Mixing bowl

Instructions

1. 1

   Prep the mushrooms

   Preheat your oven to 375°F. Clean the mushrooms with a damp paper towel, never running water, which makes them soggy. Twist out the stems gently, then use a small spoon to scrape out the gills, creating a nice deep well for that filling. Finely chop the stems and set them aside. You're going to use every bit of those mushrooms.

   Choose mushrooms with caps about two inches across. Smaller ones are fiddly to fill; larger ones can overwhelm the filling.
2. 2

   Season the crab

   Place the crab meat in a bowl. Gently pick through it one more time for any shell fragments your fingers missed earlier. Sprinkle with half a teaspoon of Cajun seasoning and the lemon juice. Toss gently to coat, being careful not to break up those beautiful lumps. This is your first layer of flavor. Set it aside while you build the rest.

3. 3

   Cook the trinity

   Melt two tablespoons of butter in a skillet over medium heat. Add the onion, celery, bell pepper, and those chopped mushroom stems. Cook, stirring occasionally, until the vegetables are soft and the onion turns translucent, about five to six minutes. You'll smell that sweet, aromatic fragrance that tells you the trinity is doing its job. Add the garlic and cook one minute more until fragrant. Season with remaining teaspoon of Cajun seasoning, the salt, black pepper, and cayenne if you want that extra kick.

   The trinity should be diced fine so it blends into the filling rather than staying chunky. You want flavor in every bite, not big pieces of celery.
4. 4

   Build the filling

   Remove the skillet from heat and let it cool for two minutes. Add the softened cream cheese and stir until it melts into the vegetables, creating a rich, cohesive base. Fold in the seasoned crab meat, green onions, and parsley. Work gently here. You want to keep some of those crab lumps intact so they show in the finished mushrooms. Taste the filling and adjust your seasoning. This is your moment to get it right.

5. 5

   Stuff the mushrooms

   Arrange the mushroom caps hollow-side up on a rimmed baking sheet. Spoon the crab filling generously into each cap, mounding it slightly above the rim. Don't be stingy. These are party mushrooms, and party mushrooms should look abundant. You should have just enough filling for all twenty-four if you've been generous but not wasteful.

6. 6

   Make the topping

   Melt the remaining two tablespoons of butter in a small bowl. Toss with the panko breadcrumbs and Parmesan cheese until everything is coated. Sprinkle this mixture over each stuffed mushroom, pressing lightly so it adheres to the filling. That butter is going to help those crumbs turn golden and gorgeous in the oven.

7. 7

   Bake until bubbly

   Bake for twenty to twenty-five minutes until the breadcrumb topping is golden brown and you can see the filling bubbling at the edges. The mushrooms will release some liquid as they cook; that's normal. When they come out, let them rest for three minutes so nobody burns their tongue, though I know that's hard when they smell this good.

   If your topping is browning too fast, tent loosely with foil for the last five minutes. You want golden, not burnt.
8. 8

   Garnish and serve

   Transfer the mushrooms to a serving platter, scatter fresh parsley over the top, and arrange lemon wedges alongside. Serve warm while the filling is still creamy and the topping still crunchy. Watch them disappear. At Lagniappe, we call that a successful appetizer.

Chef Tips

• •Gulf lump crab is worth seeking out for this dish. The sweetness and texture are unmatched. If you can't find it, good quality jumbo lump from your fishmonger works fine, but avoid the canned stuff from overseas. The flavor just isn't there.
• •You can assemble these mushrooms up to four hours ahead and refrigerate them unbaked. Add the breadcrumb topping just before they go in the oven, and add five minutes to your baking time since they're starting cold.
• •Make your own Cajun seasoning if you can: paprika, cayenne, garlic powder, onion powder, thyme, oregano, salt, black pepper, and a little white pepper. Store-bought works, but homemade lets you control the salt and heat.
• •Spice tolerance varies, and that's just fine. Start with the amounts here and taste your filling before stuffing. You can always add more heat with a dash of hot sauce, but you can't take it away.
• •These pair beautifully with a crisp white wine or a cold Louisiana lager. The richness of the filling wants something bright to cut through it.

Advance Preparation

• •The crab filling can be made up to one day ahead and refrigerated. Bring to room temperature before stuffing the mushrooms.
• •Assembled mushrooms can be refrigerated up to four hours before baking. Add breadcrumb topping just before baking.
• •Baked mushrooms are best served immediately but can be kept warm in a 200°F oven for up to twenty minutes if needed.

Frequently Asked Questions

Nutrition Information

1 serving (about 180g)