Prepare stuffing according to package directions.
Meanwhile, in large mixing bowl, combine beef, ½ cup salsa, chiles, eggs, onions and garlic powder. Add prepared stuffing; mix until just combined.
Transfer to a greased 9x5-inch loaf pan. Bake in a preheated 375°F oven 1 hour.
Top with remaining salsa; continue baking 15 minutes or until internal temperature reaches 160°F.
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