Preheat the oven to 400°. Line a sheet pan with foil & coat it with cooking spray.
Cut the jalapenos in half lengthwise & use a spoon to scoop out the seeds & ribs.
In a medium bowl, mix together the cream cheese, cheddar cheese, onion powder, salt & pepper.
Fill each jalapeno half with the cheese mixture.
Cut the slices of bacon in half crosswise & wrap each pepper half in a slice of bacon, using a toothpick to secure the bacon.
Arrange the peppers on the baking sheet & bake for 20-25 minutes until bacon is crispy & browned. Serve immediately.