Preheat your oven to 400F and get a wide pan on medium high heat.
Trim the tough stalks from the mushrooms, but leave enough that they still stay connected.
Peel the garlic and give it a rough chop
Add the mushrooms, shwarma spice, olive oil, and garlic to a bowl. Massage the mushrooms until they are evenly coated. Marinated for at least 10 minutes.
Add the mushrooms to the pan. Place another large pan on top and sear for 1 to 2 minutes. Once the mushrooms have a crust from searing, flip and repeat. After both sides are seared place in the oven for 10 to 15 minutes. When tender, remove from the oven.
Cut the radicchio into quarters and remove the core. Remove the leaves for serving. Cut any large pieces into bite sizes.
Spread the hummus evenly onto a serving plate. Add the radicchio, then shwarma mushrooms and mint. Finish with a drizzle of olive oil, and dusting of sumac