Place all ingredients except the graham cracker in a blender, and process until smooth. Pour into a glass and garnish with crumbled graham cracker.
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Notes
For even more staying power, try adding some almond flour/meal, hemp seeds, or rolled oats to the smoothie before blending.
If you're not a banana fan, try replacing it with either ½ cup additional Greek yogurt or half a ripe avocado. For either option, you'll also need to add a handful of ice and a bit of maple syrup to taste.
It's important to use pumpkin puree, not pumpkin pie filling, for the best tasting smoothie.
If your bananas aren't frozen, add a handful of ice to the smoothie. This might dilute the flavor a bit, which is why we recommend keeping frozen bananas on hand! Just peel them, cut them into bite-sized pieces, and freeze on a baking sheet before transferring them to a freezer bag or container.