Combine the cream cheese and shredded cheese; beat until fluffy. Stir in 1 cup sour cream and taco seasoning. Beat in eggs, one at a time. Fold in chilies. Pour into a 9-inch springform pan.
Bake in a 350 degree oven for 35-40 minutes or until center is firm. Remove from oven; cool 10 minutes. Spoon remaining sour cream over the top of cake; return to oven for another 5 minutes. Cool completely. Refrigerate, covered. Just before serving, top with your favorite salsa. Serve with your favorite tortilla chips.