Preheat the oven to 375 degrees F. Lightly grease a baking sheet.
Place the sweetpotatoes on a microwave-safe plate. Poke each a few times with a fork, then cover with a damp paper towel. Microwave for 5-6 minutes, until cooked through and tender.
Meanwhile, slice the jalapeños in half lengthwise and remove the seeds and white pith. Place on a baking sheet.
When the cooked sweetpotatoes are cool enough to handle, scoop out the flesh of the sweetpotato and place it in a mini food processor or blender. (Discard the skin or save to make potato skins another day!). Add the cheddar cheese, cottage cheese, garlic powder, salt, and pepper in with the sweetpotatoes. Process for about 30 seconds, until the mixture is well-combined. Stir in the chives.
Scoop the sweetpotato mixture into the jalapeño halves. Sprinkle the panko breadcrumbs over the top, then drizzle with the olive oil.
Bake at 375 degrees F for 15-20 minutes, until jalapeños are tender and filling is hot throughout. Let cool just a couple minutes, then enjoy warm!