Heirloom pumpkins can be added to hearty winter grain salads, tacos, or eaten as a side dish with salt, pepper, and olive oil. Heirloom pumpkins puree perfectly for sweet recipes (like pie), creamy soups, and even smoothies.Heirloom pumpkins are varieties that have been around for many generations, often passed down through families or communities. These pumpkins are typically grown for their unique characteristics, such as their size, shape, or flavor, rather than for mass production.