For those obsessed with all things pumpkin, there's really no end to where this antioxidant-rich squash can be used. Breakfast smoothies are no exception! This simple recipe for a pumpkin smoothie is so good, you'll probably want to start every morning off with one. Luckily, canned pumpkin is available year-round, which means you can enjoy this smoothie during the sunny months of Summer or on a dark Winter morning. For an even creamier and nutrient-dense breakfast, consider adding a little Greek yogurt to the mix.