Combine beaten egg yolks and milk.
Cook pudding mix according to package directions using the egg-milk mixture as the liquid.
Remove from heat.
Cut cream cheese in pieces and add to hot pudding; beat till cheese is melted.
Let mixture cool about 10 minutes.
Beat egg whites to soft peaks; gradually add sugar beating to stiff peaks.
Fold egg whites into pudding.
Spoon into tart shells; chill.
Just before serving, spoon sugared fresh strawberries, fresh blueberries, or canned peach halves over tarts.