To make the mushrooms:
Slice 1 box of mushrooms.
Heat avocado oil on medium heat in a cast iron skillet.
Add mushrooms with 1-2 cloves minced garlic to skillet, stirring occasionally.
Meanwhile, combine 1 tbsp mellow white miso with 1-2 tbsp water, forming a paste. Once mushrooms are cooked, pour in miso paste and a big splash of balsamic vinegar.
Continue cooking until the liquid has cooked down and thickened