Preheat the oven to 350 degrees F. Line a 9" springform cake pan with parchment paper and spray the bottoms and sides thoroughly. Set aside. To make the crust, pulse the gingersnap cookies in a food processor to a uniform crumb. Once cookies are broken down, slowly add melted butter and process until well combined. The crust should stick together when pressed between your fingers. Transfer crust onto the prepared cake pan, evenly pressing the crust down around the bottom of the pan with your fingers, and set aside.
Clean out your food processor and then combine cream cheese and granulated sugar, blending until smooth and well combined.
Add pumpkin, tofu, and sour cream and blend again, scraping down the sides as necessary. Add flour, spices, and vanilla and blend until combined.
Pour cheesecake batter into prepared pan. Place on a baking sheet in the lower rack of your oven. Add ½" of water to the baking sheet to give it steam. This will allow the cheesecake to bake uniformly.
Bake for 60-75 minutes. Check for doneness after 60. The cheesecake will be wobbly, but start pulling away from the sides and cracking a little on the top when it's done. Remove from oven and let cool for 60 minutes before putting in the refrigerator to chill for at least 4 hours.
Serve chilled with pecans or coconut whipped cream.