Go beyond gluten-free zucchini muffins by including fruit! You'll love these freezer-friendly gluten-free, applesauce banana zucchini muffins! They're dairy-free too! What do you make when you have overripe bananas AND your neighbor brings by a bunch of zucchini?  That's what I was wondering! I could make gluten-free banana muffins. I could make gluten-free zucchini bread.