Heat the oven to 200 C (390F).
Line the tray with baking paper.
In a bowl, add cream cheese, fried onion flakes, grated cheese, ¼ cup panko breadcrumbs, melted butter, green onion, garlic, salt, pepper and mix until it becomes a homogeneous composition.
In a small bowl, add the topping ingredients.
Fill the cleaned jalapeño halves with the cream cheese mixture.
Dip each pepper, inside down, on top of the breadcrumbs mixture, so that it sticks to the filling.
Arrange the stuffed peppers on the tray with the breadcrumbs layer faced up.
Bake the stuffed jalapenos in the oven until the tops are lightly browned, 15-20 minutes.
Serve warm.