Preheat oven to 350°. Spray 8 (3½-inch) removable-bottom tartlet pans with cooking spray. Place on a rimmed baking sheet.
In a large bowl, stir together cookie crumbs, sugar, and salt. Add melted butter, stirring until combined. Divide crumb mixture among prepared tartlet pans, pressing mixture into bottoms and sides of pans.
Bake until set, 8 to 10 minutes. Let cool on a wire rack. Carefully remove tartlet shells from pans.
Recipe by TeaTime Magazine at https://teatimemagazine.com/pumpkin-pie-tartlets-recipe/