Let pie crust stand at room temperature 30 minutes to soften.
Heat oven to 450°F. Line cookie sheet with parchment paper.
Unroll pie crust onto cutting board. Using mini (1-inch) heart-shaped cookie cutter, cut pastry into hearts; place on cookie sheet.
Spray hearts lightly with cooking spray. Sprinkle pastry with either sweet or savory toppings, using as little or as much as desired.
Bake 6 to 7 minutes or until crackers are lightly browned. Remove from cookie sheet; cool 5 minutes. Serve immediately or store in an airtight container for up to 5 days.