To prepare dough, dissolve yeast in 1/4 cup warm water in a large bowl; let stand 5 minutes. Add remaining 1/2 cup water. Lightly spoon flour into dry measuring cups; level with a knife. Add 2 cups flour and the next 5 ingredients (through 1/2 teaspoon finely chopped rosemary), stirring until well blended.
Turn dough out onto a floured surface. Knead until smooth and elastic (about 8 minutes); add enough of remaining flour, 1 tablespoon at a time, to prevent dough from sticking to hands (dough will feel tacky).
Place dough in a large bowl coated with cooking spray, turning to coat top. Cover and let rise in a warm place (85°), free from drafts, 40 minutes or until doubled in size. (Press two fingers into dough. If indentation remains, dough has risen enough.)
Punch dough down; cover and let rest 5 minutes. Shape dough into a 15 x 13-inch rectangle on a baking sheet coated with cooking spray and sprinkled with cornmeal. Crimp edges of dough with fingers to form a rim.
Preheat oven to 400°.
To prepare filling, heat 1 tablespoon olive oil in a large nonstick skillet over medium-high heat. Add onion, 1 teaspoon thyme, 1/2 teaspoon rosemary, and garlic. Cover and cook 15 minutes or until golden brown, stirring occasionally. Uncover; reduce heat, and cook 15 minutes or until onions are soft, stirring occasionally. Stir in tomato; cook 15 minutes or until mixture is almost dry. Stir in olives and anchovies.
Spread onion mixture over dough, leaving a 1/2-inch border. Bake at 400° for 35 minutes or until crust is crisp. Sprinkle with cheese and pepper. Serve warm or at room temperature.