Wash mushrooms, remove the stems and keep all in cold water. Pre heat the oven to 350F.
- Cut bacon into small pieces. - Grate cheese. - Chop mushroom stems. - Dice onions small. - Mince garlic.
Cook bacon in the skillet until crisp, without adding any additional oil. Remove from the skillet onto paper towels to absorb the grease.
Add mushrooms stem and onions and 1 tablespoon oil to the skillet and sauté until tender. Add garlic and cook until fragrant, 1-2 minutes. Add bacon and mix.
Layer the mushrooms on a baking dish. Stuff with the bacon mix.
Sprinkle grated cheese (be careful not to sprinkle outside the edges as they'll burn in the oven)
Cook in the oven for 15-20 min at 350 F until the mushrooms are tender and the cheese is golden.
Remove from oven and sprinkle chopped parsley (optional)