Kind of! You can add beans, melted butter or oil, and seasonings to a ziplock bag and toss to coat. Refrigerate until you're ready to bake. Or, you can roast beans ahead of time, cooking them about 5 minutes less than the total listed time. Then reheat in the microwave or on a baking sheet. If you cook them on a baking sheet they will be crispier than if you microwave them.