Steak, Mushroom, And Onion Pizza - cooking recipe

Ingredients

4 tablespoons olive oil, divided
8 ounces sliced mushrooms
2 medium onions, thinly sliced
1 garlic clove, minced
salt, to taste
fresh ground pepper, to taste
1/4 teaspoon fresh thyme
1 -2 tablespoon balsamic vinegar
3/4 lb beef sirloin steak, cut into strips
1 -2 tablespoon flour
1 (12 inch) prepared pizza crust (not prebaked)
1/2 cup pizza sauce (or to taste)
2 cups shredded mozzarella cheese (or to taste)

Preparation

Heat 2 tablespoons oil in a large skillet over medium-high heat. Add onions, mushrooms, and garlic and saute 1-2 minutes, or until starting to release juices. Add salt, pepper, thyme, and balsamic vinegar and stir-fry until onions are just turning brown, about 10 minutes. Remove from pan and set aside.
In same skillet, heat remaining 2 tablespoons olive oil. Add beef strips and stir-fry until browned, about 4-5 minutes. Add mushroom mixture back to skillet and cook until heated through. Add enough flour to thicken juices. Remove from heat and set aside.
Meanwhile, heat oven to 400* F. Spread pizza dough out into a 12 inch circle in a greased pizza pan. Bake at 400* F for about 10 minutes, or until just turning pale golden.
Spread sauce over crust. Top with about 1 cup of the mozzarella cheese (use more if desired). Place beef mixture evenly over cheese. Top with remaining mozzarella.
Return to oven and bake at 400* F for another 10-12 minutes, or until cheese is melted with golden brown spots.