Wash the mini sweet peppers, then cut each in half lengthwise. Toss them in a bowl with extra-virgin olive oil and salt until well coated.
In a separate bowl, combine the softened goat cheese, grated Parmesan, onion powder, dried oregano, minced garlic, chopped jalapeños, and black pepper.
Fill each pepper and roast in the preheated oven for 18-22 minutes until the peppers are soft and the cheese is lightly toasted.