In a large bowl, combine flour and salt; cut in butter until crumbly. Gradually add water, tossing with a fork until dough forms a ball. Cover and refrigerate for 1 hour.
Broil peppers 4 in. from the heat until skins are blistered and blackened, about 10 minutes. Immediately place peppers in a bowl; cover and let stand for 15-20 minutes. Peel off and discard charred skin. Coarsely chop peppers; place in a bowl.
Add oil, garlic and oregano; toss to coat. Set aside.
Roll out dough to fit a 12-in. pizza pan.
Transfer to pan. Prick dough thoroughly with a fork.
Bake at 350° for 30-35 minutes or until lightly browned and crust begins pulling away from edges of pan. Cool completely.
Sprinkle 1 cup cheese over crust.
Sprinkle with pepper mixture and remaining cheese. Arrange olives around edge.
Bake at 350° for 10-15 minutes or until cheese is melted.