1. Preheat the oven to 425℉. Spray 15 X 10 X 1-inch baking pan with no stick cooking spray.
In a low, wide bowl add milk. In a second low, wide bowl- mix the tortilla crumbs with the chili powder, cumin and garlic powder.
Dip the turkey cutlets first in the milk and then in the spiced tortilla crumbs. Place on the baking sheet. Bake 15 to 20 minutes, or until cutlets are cooked through.
While cutlets are baking, prepare the relish. Heat a medium, nonstick skillet over medium heat. Add the peppers, corn and onions. Cook, stirring, 3 to 4 minutes, until the vegetables are softened. Remove from heat.
Prepare the sauce: Add all sauce ingredients to a blender or food processor and process until smooth.
Divide turkey cutlets between four plates. Add a dollop of avocado sauce and a generous spoonful of corn and pepper relish.