Remove stems from mushrooms and set them aside. Using a spoon, scrape out the gills of each mushroom and discard. Finely chop the mushroom stems.
Place mushrooms on a lightly greased baking sheet. Preheat oven to 400 degrees.
Melt 2 tablespoons of butter in a large nonstick pan. Add chopped mushroom stems and red bell pepper. Cook 2 to 3 minutes. Add green onions and garlic and cook 2 minutes more. Transfer mixture to a medium bowl, season with salt and pepper, and let cool.
Pick through crab meat and remove any pieces of shell. Add crab meat to bowl along with Parmesan cheese, Cajun seasoning and cream cheese. Stir with a wooden spoon to mix evenly.
Evenly spoon mixture into mushroom caps.
In a small bowl, stir Panko crumbs together with melted butter and parsley. Sprinkle on top of mushrooms.
Place in 400 degree oven for 20 minutes.
This recipe originally appeared on spicysouthernkitchen.com