Start by cleaning the mushrooms. Use a damp cloth to wipe away any dirt, as rinsing them under water can make them soggy. Slice them into even pieces for uniform cooking.
In a large skillet, heat 1 teaspoon of cooking oil over medium-high heat. The oil helps prevent the butter from burning and gives the mushrooms a nice sear.
Add 2 tablespoons of minced shallots (or onion) to the pan, stirring frequently for about 2 minutes until they become translucent. Next, add 1 clove of finely minced garlic and sauté for another minute until fragrant.
Add the sliced mushrooms to the skillet. Spread them out in a single layer to ensure they sauté rather than steam. Let them cook undisturbed for about 5 minutes, allowing them to caramelize before stirring.
Once the mushrooms have browned, add 2 tablespoons of butter to the pan. Stir to coat the mushrooms evenly. Season with salt and freshly ground black pepper to taste.
Just before removing the pan from the heat, stir in the minced fresh herbs of your choice. This adds a burst of flavor and freshness.
Transfer the sautéed mushrooms to a serving dish and enjoy them warm. They make an excellent side dish or a delightful topping for various entrees.