Easy Sausage-Stuffed Mushrooms

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Hollow out each mushroom cap, reserving the scrapings.

Step 3
Heat a skillet over medium-high heat. Cook and stir sausage, onion, and reserved mushroom scrapings until sausage is browned and cooked through, 4 to 6 minutes. Drain and discard grease; return the sausage mixture to the skillet.

Step 4
Stir 3 ounces Parmesan cheese, bread crumbs, garlic, and parsley into the sausage mixture. Cook and stir until heated through, 3 to 5 minutes.

Step 5
Stuff each mushroom cap with the sausage mixture and place on a baking sheet.

Step 6
Bake stuffed mushrooms in the preheated oven for 12 minutes. Sprinkle remaining 1 ounce Parmesan cheese over mushrooms and bake until mushrooms are cooked through and cheese is melted and bubbling, about 3 minutes.