Happy Hour Mushrooms are a delicious and savory appetizer that is perfect for any gathering. These mushrooms are marinated in a flavorful mixture of garlic, soy sauce, and balsamic vinegar, then sautéed until tender and golden brown. The result is a dish that is bursting with umami flavor and has a satisfyingly meaty texture. Serve these mushrooms with toothpicks for easy snacking, and watch them disappear in no time!