In 2 quart glass bowl or dish measure, beat cheese until fluffy. Gradually beat in sweetened condensed milk until smooth. Add eggs then lemon juice, mix well. Cook on medium high in microwave for 6 to 8 minutes, or until hot, stirring every 2 minutes. Pour into prepared crust. Cook on 50% power (medium) 6 to 8 minutes more until center is set. Cool. Chill.