Prepare and measure all ingredients. Oil a large cookie sheet or 12-inch round pizza pan and dust with cornmeal; spread prepared crust evenly on cookie sheet or trim and fit to pizza pan.
Sprinkle mozzarella evenly over crust. Sauté onion and garlic in oil until onion is transparent, about 3 minutes; stir in seasonings and sprinkle over cheese. Arrange tomatoes and artichoke hearts on top. Layer with Feta and Swiss cheeses, Havarti slices and olives. Sprinkle basil over all and bake at 400˚F for 8 to 10 minutes, until crust is lightly brown and cheeses are melted.