In a small bowl, combine the all-purpose flour, 1/2 cup whole wheat flour, yeast, salt and sugar. Stir in the water, oil and honey; beat just until moistened. Stir in enough remaining whole wheat flour to form a soft dough (dough will be sticky)., Turn onto a floured surface; knead until smooth and elastic, 6-8 minutes. Cover and let rest for 30 minutes., Meanwhile, in a large skillet, saute the onion, 2 teaspoons vinegar, 1 teaspoon syrup, salt and cayenne in oil until onion is tender. Remove from the heat; stir in the sage, mustard, and remaining vinegar and syrup., Grease a 12-in. pizza pan; sprinkle with cornmeal. Roll out dough to fit prepared pan; prick thoroughly with a fork. Bake at 450° for 5-8 minutes or until edges are lightly browned., Arrange the onion mixture, beet greens, apple, sausages and cheese over top. Bake 5-7 minutes longer or until crust is golden and cheese is melted.