In 12-inch nonstick skillet, cook beef over medium-high heat 5 to 7 minutes, stirring frequently, until thoroughly cooked; drain. Pour into small bowl; stir in taco seasoning mix until combined. Set aside.
In same skillet, heat cream cheese and tomatoes over medium heat 4 to 5 minutes, stirring occasionally, until cream cheese is smooth. Stir in chiles, cheese and beef mixture; continue cooking about 5 minutes, stirring occasionally, until cheese is melted and mixture is hot. Pour into heatproof serving bowl. Sprinkle green onion and cilantro on top. Serve warm with chips.
