Zucchini

You can sub unsweetened applesauce for oil in a zucchini bread to lower the fat content. If using sweetened, make sure to reduce the sugar in the recipe.

Two zucchini bread recipes that call for whole wheat flour:

http://www.101cookbooks.com/archives/my-special-zucchini-bread-recipe-recipe.html

http://www.kingarthurflour.com/blog/2011/09/19/100-whole-wheat-zucchini-chocolate-chip-bread-when-the-horn-of-plenty-becomes-the-horn-of-too-much/

Also found the recipe I've pasted below while doing some poking around. I think you can totally take the recipe in a sweet direction by adding sugar and vanilla, and allowing the brightness of the zucchini and lemon to shine through: http://www.101cookbooks.com/archives/zucchini-ricotta-cheesecake-recipe.html

You can find many, many zucchini recipes at the bottom of this post:

http://www.food52.com/blog/4196_down_dirty_summer_squash