Preheat oven to 350 degrees. Coat a baking sheet with cooking spray.
In a medium bowl combine browned sausage, cheeses, scallion, and spices. Mix until well blended. Fill each of the prepared jalapeños with 2-3 Tbl. of the sausage cheese mixture.
Set up three small bowls. One for flour with chili powder. One for beaten egg. One for Doritos (begin with 2 cups crushed). Dip each of the filled jalapeños in flour, then egg, then dredge in Doritos; pressing to coat.
Place coated poppers on prepared baking sheet, cut side up.
Bake for 30 minutes until filling is bubbly and coating is golden brown.