Pre-heat oven to 400 degrees and set aside a baking sheet and large oven safe glass bowl (10-12 inch diameter). Move your oven rack to a lower setting so that there is ample space to accommodate for the height of the bowl when you place it in the oven.
Mix flour, baking powder, and salt together in a bowl
Stir in milk and olive oil until a soft dough forms
Place dough onto a lightly floured surface and knead 10 times
Shape the dough into a ball and cover dough with an inverted bowl and let sit for 10 minutes.
Roll dough out into a roughly 12 to 15 inch circle
Place your oven safe bowl on your baking sheet and spray with non-stick cooking spray
Carefully place the rolled out dough evenly over the bowl and smooth out any ripples and patch any holes
Bake crust in the pre-heated oven for 15 to 20 minutes or until the outside is a light golden brown
Take the crust out of the oven and allow to cool slightly, then invert the crust, placing it back inside the bowl and bake in the oven for an additional 8 to 10 minutes allowing the inside to get slightly golden brown. This will ensure it's well baked and can stand on its own. watch the edges carefully though, you don't want them to burn.
Once finished remove the crust from the oven and allow to cool in the bowl
Once cool place your salad in the bowl and serve! I suggest serving the dressing on the side unless serving immediately to avoid the bowl potentially getting soggy.