Preheat oven to 350°F.

In a frying pan over medium heat; cook sausage and drain off fat.

While the sausage is cooking . . . start to clean mushrooms.  

Gently tear off stem and take a melon~baller to scoop out the gills in the mushroom.  You want to leave the walls intact as best you can.

In the same frying pan, add back the drained sausage over medium-heat.  Add cream cheese chunks and stir to melt and combine with the sausage.  Cook until cream cheese has completely  melted turn off heat and add green onions.  Stir until just combined.

Once the sausage mixture is combined; cool down a bit – enough to handle.  With a spoon, scoop sausage mixture into the scooped out mushrooms and place on a rimmed foiled line baking sheet. 

Bake in a 350° oven for approximately 20 minutes.

The mushrooms will weep a lot of liquid so best to remove mushrooms from baking sheet immediately and place onto a serving platter. 

Serve immediately.