In a bowl large enough to hold the popcorn, drizzle 1/3 cup of the mushroom sage olive oil over the sides and bottom of the bowl. Alternatively, you can use an oil mister to spray the oil on to the popcorn.
Add the still warm popcorn to the bowl and toss to coat evenly. Add 1/2 cup grated Asiago, and a few turns of fresh cracked pepper, and salt to taste. Toss to coat again. Finish by drizzling the remaining mushroom-sage olive oil over the top along with two tablespoons of Asiago, and more black pepper.