Preheat oven to 400°F.
Place pizza stone/steel in the oven to heat up while oven preheats.
Place Italian sausage in a large skillet and cook over medium heat until browned. Drain off excess fat. Set aside.
Sauté mushrooms over medium heat for 4-5 minutes until they release their moisture and excess liquid has cooked off. Set aside.
Spread out a little flour on a smooth work surface.
Stretch out the dough by holding it in both your hands and turning it to stretch it out. Hold it like you would a steering wheel, turning it, letting the weight of the dough start to stretch it out as you turn it.
Place the dough onto the floured work surface and gently start to spread the dough out using your fingers.
Sprinkle a little flour onto the dough and use a rolling pin to roll it out to an even thickness.
Remove pizza stone from the oven and place it on a flat surface. Transfer dough onto the stone. Use a rolling pin to spread it out in an even thickness, leaving the edges of the dough a bit thicker.
Cover the dough with a dish cloth and let it rest for about 5-10 minutes.
Bake in preheated oven for 7 minutes. Watch dough as it pre-bakes. Use the tip of a sharp knife to "pop" any large bubbles that form.
Remove crust when it is lightly browned.
At this point, transfer the crust onto a pizza pan. If you don't have a pizza pan in your arsenal, just leave the crust on the baking stone and proceed with the sauce and the toppings.
Top with sauce, cheese and preferred toppings.
Sprinkle with Italian seasoning.
Return pizza to the oven and bake for an additional 10 minutes or until crust is golden brown on the bottom.