Try the snacks provided in this guide. There are quick snack ideas, as well as 10 Approved Clean Eating Snacks. Have some low-glycemic (sugar) fruits, like berries, green apples, and grapefruit.
Sweet potato toast -- a quick and healthy breakfast! Includes a how-to, trouble shooting tips, and lots of sweet and savory topping ideas (Vegan Gluten Free Potato)