Clean your mushrooms. The professional way to do this is with a brush and not water. Yet, if your mushrooms are very dirty and/or treated with pesticides then rinse them through some water and pat dry.
4 Piece King Oyster Mushroom
Slice mushrooms lengthwise, all the same thickness. I cut them to about 0.2 inches/ 0.5 centimeter thickness.
Take your skillet to the heat and pour in olive oil. Wait for the oil to get hot but it shouldn't smoke.
7-8 Tablespoon Olive Oil
Place mushroom slices into the pan. Don't overcrowd your pan, you should be able to move and turn your mushrooms easily in the pan.
4 Piece King Oyster Mushroom
Season mushroom on both sides with thyme, salt, and black pepper.
1 Teaspoon Salt, ½ Teaspoon Black Pepper Ground, 1 Teaspoon Thyme
Cook mushrooms on both sides until they turn a bit golden brown or until they look cooked. Take them out and place them into a serving dish.
Sprinkle freshly squeezed lemon juice over the mushrooms. A few drops are enough to brighten up the dish.