Break apart Lion’s Mane Mushroom into medium bite size pieces. (cut off any yellow)Rinse asparagus and cut off whitish end parts.Wash tomatoes and cut into medium spears.Wash green onions and cut into small rounds.
Place parchment paper on baking pan. (or aluminum foil) Drizzle moderate amount of regular olive oil to prevent sticking. (or preferred oil)
Arrange ingredients in pan. Drizzle light amount of truffle olive oil across ingredients. Add a couple pinches of sea salt.
Place in oven, middle rack. Roast for 12-14 minutes. (watch for light mushroom browning) Add 1/2 cup water carefully over the light browned mushrooms and roast for additional 10-12 minutes.