Place cream cheese, water and vinegar in a blender jar and pulse until well blended.
Add prepared salsa and pulse until desired smoothness. Set aside.
Brown ground beef with chili powder, cumin and salt; stir and break up meat as it cooks. Set aside to cool.
Combine lettuce, onion and beans in a large bowl. Stir in enough dressing to lightly coat lettuce. Divide out lettuce mixture into individual bowls.
Top with browned meat, tomatoes, olives and corn chips. Top with a dollop of the remaining dressing. Serve with additional dressing available as desired.