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A baking sheet with two creamy shrimp and spinach, stuffed portobello mushrooms. Topped with Panko and plated with lemon wedges and parsley.

Creamy Shrimp and Spinach Stuffed Portobello Mushrooms

These stuffed portobello mushrooms are a rich and creamy combination of tender shrimp, spinach, and savory cheeses, enhanced with bright lemon zest and topped with crispy panko crumbs.
Prep Time 10 minutes
Cook Time 20 minutes
Course Appetizer, Main Course
Cuisine American
Servings 2

Equipment

  • 1 small baking sheet
  • aluminum foil
  • 1 medium mixing bowl
  • 1 spatula
  • paper towels for drying shrimp

Ingredients
  

  • 2 large portobello mushroom caps
  • 8 medium raw shrimp peeled, deveined, and chopped
  • 8 ounces cream cheese softened
  • 2 tablespoons grated Parmesan cheese for filling
  • 1/4 cup defrosted frozen spinach or blanched fresh spinach, squeezed to remove excess water
  • 1 small garlic clove minced
  • 1 tablespoon fresh parsley chopped
  • 1 teaspoon lemon zest
  • 1/3 cup panko breadcrumbs
  • 1 tablespoon grated Parmesan cheese for panko topping
  • 1 tablespoon olive oil plus extra for brushing mushrooms
  • Salt and pepper to taste
  • Optional garnish: Extra parsley or a squeeze of lemon

Instructions
 

Prepare the Mushrooms:

  • Preheat your oven to 400°F (200°C).
  • Remove the stems from the portobello mushrooms and gently scrape out the gills with a spoon. Brush both sides of the mushroom caps with olive oil and season with salt and pepper. Place them on a baking sheet lined with parchment paper, gill side up.

Prepare the Shrimp:

  • Pat the chopped shrimp dry with a paper towel to reduce excess moisture.

Make the Filling:

  • In a bowl, mix cream cheese, Parmesan cheese (2 tablespoons), spinach, garlic, parsley, and lemon zest. Add the chopped shrimp, season with salt and pepper, and mix until just combined.

Prepare the Topping:

  • In a small bowl, combine panko breadcrumbs, Parmesan cheese (1 tablespoon), and olive oil. Mix until the breadcrumbs are evenly coated.

Stuff and Top the Mushrooms:

  • Divide the shrimp and spinach filling evenly between the mushroom caps. Smooth the tops, then sprinkle the panko mixture generously over each stuffed mushroom.

Bake:

  • Bake for 20–22 minutes at 400°F, or until the filling is bubbling, the shrimp are cooked through, and the mushrooms are tender. For a golden crust, broil for the last 2–3 minutes.

Serve:

  • Garnish with parsley or a squeeze of lemon for added brightness. Serve warm.

Notes

  • Dry Spinach Thoroughly: Squeeze out as much water as possible to prevent a soggy filling.
  • Extra Cheesy Topping: Add a pinch more Parmesan to the panko mixture if desired.
  • Brighten with Citrus: Add more lemon zest or juice to taste for a fresh finish.
Keyword creamy mushrooms, easy appetizers, low carb meals, portobello mushroom recipes, stuffed mushroom recipe, stuffed portobello mushrooms