Preheat oven to 400 degrees. Line a baking sheet with nonstick aluminum foil.
In a resealable bag, combine the flour, chile powder and salt. Mix well. Add the avocado slices and seal the bag. Shake well until all the slices are coated.
Place the eggs in a shallow bowl for dredging and the breadcrumbs in a second shallow bowl for dredging. Working with one avocado slice at a time, dredge first in egg and then in breadcrumbs. Place on the baking sheet in a single layer. Spray with cooking oil spray.
Bake the avocado slices for 16-18 minutes, or until golden.
Transfer to a serving dish and squeeze lime juice over. Season with additional salt.