Grease pie plate. Sprinkle ham, cheese and onion in pie plate. Beat remaining ingred. 15 sec. In blender on high speed. Pour into pie plate. Bake 35-40 min. At 400 or til knife inserted comes out clean. Cool 5 min. 6 servings. May substitute 12 slices bacon, crisply cooked and crumbled. Lisa Crawley