Pumpkin overnight oats are a vegan, gluten-free, and healthy fall breakfast option. This quick and easy recipe is made the night before and can be eaten either cold right out of the fridge or warmed up. Made with pumpkin puree, pie spice, maple syrup, and cashew or almond milk, this easy meal prep breakfast recipe is vegan, gluten-free, vegetarian, and can be prepped ahead for a simple grab-and-go recipe.