1. Preheat oven to 450°F. Line a rimmed baking sheet with foil and lightly spray with cooking spray.
2. Toss potatoes in a large bowl with peppers, olive oil and rosemary.
3. Spread mixture in a single layer on foil-lined baking sheet.
4. Bake 25-30 minutes.
5. Garnish with parsley and serve.
Tip: If you can’t find Fresno chili peppers where you live, substitute jalapeño or Serrano peppers if you like a little more heat. If you like less heat, try yellow wax or Hungarian peppers.