Heat oven to 375°F. Line a loaf pan with foil and lightly oil it.
Whisk ketchup, salsa, and chili powder in a small bowl to make the glaze. Set aside.
Combine beef, crushed chips, cheese, onion, garlic, green chiles, salsa, milk, taco seasoning, salt, pepper, and cilantro in a large bowl.
Mix gently with clean hands until just combined; do not overwork.
Shape into a loaf and place in the prepared pan.
Bake for 35 minutes, then brush the top with half of the glaze.
Bake 15–20 minutes more, brushing with remaining glaze, until the center reaches 160°F.
Rest 10 minutes before slicing. Serve warm with extra salsa if you like.