These mushroom fajitas are a vegetarian twist on the classic Mexican dish. The mushrooms are sautéed with onions and bell peppers, then seasoned with a blend of spices for a flavorful and satisfying filling. The fajitas are served with a vibrant arugula-pecan salsa and crumbled queso fresco, adding a fresh and creamy element to the dish. These mushroom fajitas are perfect for a meatless Monday dinner or a festive gathering with friends.