1. Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or foil.
2. In a mixing bowl, combine the cream cheese, shredded cheddar cheese, green onions, garlic powder, and smoked paprika. Mix until smooth.
3. Fill each halved jalapeño pepper with the cheese mixture, packing it in gently.
4. Wrap each stuffed jalapeño with a slice of bacon, securing the ends with toothpicks if needed.
5. Arrange the wrapped peppers on the prepared baking sheet.
6. Bake for 20-25 minutes, or until the bacon is crisp and the cheese is bubbly.
7. Remove from the oven and let cool slightly. Garnish with chopped parsley before serving, if desired.