Preheat the oven to 350 degrees. Remove the stems from the mushroom caps. Finely chop the stems and set aside.
Heat the oil in a large skillet over medium high heat. Add the garlic, mushroom stems, spinach, crab meat and seasonings to the skillet and sauté for about 5 minutes or until the spinach is wilted and the garlic and mushroom stems have softened. Remove from the heat and stir in the ricotta cheese, ¼ cup of Parmesan cheese and ½ cup of the panko breadcrumbs. Mix well. Spoon the filling mixture into each of the mushroom caps. Place the remaining panko in a small bowl and then gently dip the tops of the stuffed mushrooms into the panko to give it a nice crunchy topping. Then place on a rimmed baking sheet and bake for 20 minutes or until the mushroom filling is piping hot and the mushrooms have released their liquid onto the tray. Serve and enjoy!
Notes
Tip: If your panko hasn’t browned by the end of cooking time, place them under the broiler for a minute or two to brown up the top.