Preheat oven to 350°F. Add pecans, 1/4 cup sugar substitute, and butter to food processor. Pulse until nuts are sticky.
Press nut mixture into 13x9-inch baking dish to make crust. Bake for 15 minutes until crust is browned. Let it cool completely.
In medium bowl, using hand mixer, combine remaining sugar and cream cheese. Add in heavy whipping cream and whip until fluffy.
Pour cream cheese mixture over cooled crust. Refrigerate 30 minutes.
In medium bowl, add gelatin and boiling water; whisk until melted. Let cool.
Add strawberries into cooled gelatin. Pour over cream cheese layer.
Refrigerate 4 hours before serving.
Note: Extended refrigeration time required.