Hamburger and Grape Tomato Pizza Recipe from Martha Stewart Everyday Food Magazine

I subscribe to a recipe of the day from Martha Stewart Everyday Food - one of my favorite magazines!  Today's recipe was for Hamburger and Grape Tomato Pizza, which was originally published in 2008 and which I had totally forgotten about.   It looks good ... and easy, too!  They recommend using provolone instead of mozzarella for heightened flavor - I usually use a mixture, but I'll try that.