The reason I like to add the spinach UNDER the cheese is cause it's much harder to pick off than veggies on top LOL!
Here is my apple carrot muffin recipe. They come out really moist and tender - almost like a fruity carrot cake!
1 3/4 cups raisin bran cereal
3/4 cup AP flour
1/2 cup whole wheat flour
3/4 cup sugar (I use half brown sugar, half raw white sugar)
1 1/4 teaspoons baking soda
1 teaspoon ground cinnamon
1/4 teaspoon salt
1 egg
3/4 cup light buttermilk
1/4 cup canola oil
3/4 cup finely chopped peeled tart apple
3/4 cup finely grated carrots
1/4 cup chopped walnuts
In a bowl, combine the first six ingredients. In a small bowl, beat the egg, buttermilk and oil. Stir into dry ingredients just until moistened. Fold in apple, carrots and walnuts. Fill paper-lined muffin cups or cups coated with nonstick cooking spray three-fourths full. Bake at 400 degrees F for 20-23 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pan to a wire rack. Serve warm.
Also, I've used this one for zucchini bread and it comes out really good and DS likes it. You could also add cocoa powder and/or mini chocolate chips to it...
http://www.wholefoodsmarket.com/recipes/2580