HEAT oven to 375°F.
SPREAD chili and ½ cup of shredded cheese in an even layer in dish.
PLACE Pretzel Dogs side by side on top of chili.
COMBINE melted butter with onion powder and chives.
BRUSH mixture over Pretzel Dogs.
SPRINKLE remaining shredded cheese over Pretzel Dogs.
BAKE for 30 minutes.
TOP with more chives and serve.