In a bowl, combine eggs and sugar. Stir in pumpkin, butter, and vanilla. In a seperate bowl combine dry ingredients; gradually add to pumpkin mixture and mix well. Stir in zucchini and chocolate. Pour into two greased and floured 9-in. x 5-in. loaf pans or lined cupcake pans. Bake at 350° -- 45-55 minutes for loaves or 18-22 minutes for muffins -- or until knife/toothpick comes out clean. Cool in pans 10 minutes. Remove to a wire rack. Yield: 2 loaves or 24 muffins
Recipe by Crumbs and Chaos at http://www.crumbsandchaos.dreamhosters.com/2014/09/pumpkin-zucchini-bread/