Take a small knife and pop off the stems and then with the same knife or with a small spoon scoop out as much flesh of the inside of the mushroom to allow as big of a space as possible to be able to stuff it.
Now you are ready to stuff your mushrooms with your sausage mixture. Fill the mushroom cavity as much as you can, because after all the stuffing is the best part of your Keto Stuffed Mushroom!