You can substitute yogurt for whipped cream or vanilla ice cream instead.
For Pumpkin Pie, pour pumpkin filling into a pie crust and bake for 15 minutes at 400 degrees. Reduce to 350 degrees and bake for an additional 45 minutes longer until center is set.
Find it online: https://www.motherthyme.com/2013/09/pumpkin-pie-parfait.html