0 Preheat the oven to 400F (200C).
6 With a damp paper towel clean the mushrooms, remove the stems and save the stems for another recipe. ou can also chop up the stems, add them to the onions as well.
1 With a small teaspoon scoop a little bit out of the inside of each mushroom.
2 Drizzle olive oil into a baking dish and arrange the mushrooms on top.
7 In a pan on medium heat add a little bit of olive oil and sauté the onions.
3 Add the chopped spinach and let it wilt, and lastly the garlic and let that cook off for 30 seconds. Take it off the heat.
8 In a separate bowl add the cream cheese of choice and add in the sautéed spinach, onions and garlic. Give it a good mix.
4 Fill each mushroom with about a teaspoon of filling.
5 Top them off with mozzarella and bake for 15 to 20 minutes or until fully cooked and the cheese is melted. Enjoy