- In a medium saucepan over low heat, combine the softened cream cheese and milk. Stir until the cream cheese is melted and the mixture is smooth. 
- Gradually add the shredded Monterey Jack and white cheddar cheeses, stirring continuously until fully melted and creamy. 
- Stir in the diced green chilies, garlic powder, onion powder, cumin, salt, and pepper. Mix well to combine all ingredients. 
- Continue to cook on low heat for an additional 2-3 minutes, stirring frequently to prevent sticking. 
- Once the dip is smooth and heated through, remove from heat and transfer to a serving bowl. Garnish with chopped cilantro if desired. 
- Serve warm with tortilla chips, fresh veggies, or your favorite dippers.