Dissolve yeast in warm water in a warm bowl. Add salt, olive oil and flour(s). Mix in stand mixer 1 minute on low speed.
Increase speed slightly and mix until the dough comes away from the sides of the bowl. Knead on speed 2 for 2 minutes.
Place in greased bowl, turning to grease all over. Cover, let rise in a warm place until doubled in bulk, approx. 1 hour.
Grease a cookie sheet or 14-inch pizza pan with veg. shortening or veg. oil. Using oiled hands stretch out the dough to cover the pan ensuring it is equal thickness. Top with desired toppings and bake at 450 degrees F for 15-20 minutes or until cheese is melted and golden and bottom of the crust is golden.