Put yeast, sugar, salt, and dry milk(if using) in a large (2 qt.) bowl. Add water and stir to mix well. Allow to sit for two minutes. Add oil and stir again. Add flour and stir until dough forms and flour is absorbed. Now, that's traditional way of preparing yeast but here is What I do these days to make it easier. I take large wide bowl. Mix all dry ingredients, flours, garlic powder, salt, sugar and yeast. Now add oil, mix again and finish kneading dough with luke warm mix of water and milk.
At this point, your dough will be still sticky. So now comes, kneading part. More you knead, batter your dough will be. You can take help of dry flour to handle your dough.
Turn out on to a flat surface and knead for about 5-10 minutes. Divide dough into two balls. In two 9" cake pans, put 3 Oz. of oil in each making sure it is spread evenly. Using a rolling pin, roll out each dough ball to about a 9" circle. Place in cake pans.
Spray the outer edge of dough with cooking spray. Cover with a plate. Place in warm area and allow to rise for 30 minutes or longer if you have time.
When ready to bake pizza, preheat oven at 450-475F
Apply sauce on pizza crust. Spread vegetables, and finish with cheese layer.
Some people prebake crust and then do toppings but I do everthing in one shot.
Place prepared tray on middle rack in preheated oven and allow it to bake for about 15-20 minutes. Time may vary depend on thickness of crust but you will come to know by looking at edge of pizza crust. When edge looks little golden color, take out pizza and serve hot.
I sprinkle pizza seasoning or red pepper flakes right before serving...