Yes, and quite easily. The Pepperidge Farm Puff Pastry is parve and I buy instant mashed potatoes that are dairy free. If the directions on your instant mashed potatoes call for milk or butter, you can EASILY swap these out for your favorite non-dairy alternatives.u003cbr/u003eu003cbr/u003eI typically use soy milk and Country Crock plant based butter as my dairy free choices, but use what you have and what works for you!