Chocolate-Berry Cheesecake
["1 pkg. Betty Crocker SuperMoist chocolate fudge cake mix", "1/2 c. butter or margarine, softened", "2 pkg. cream cheese, softened (8 oz.)", "1 (6 oz.) container raspberry yogurt (2/3 c.)", "1 tub Betty Crocker rich and creamy chocolate ready-to-spread frosting", "3 eggs", "1 1/2 c. sliced strawberries", "1/2 c. blueberries", "1 can strawberry pie filling"]
["Heat oven to 325\u00b0. Grease bottom only of pan, 13 x 9 x 2-inches, with shortening. Beat cake mix and butter in large bowl with electric mixer on low speed until crumbly; reserve 1 cup. Press remaining crumbly mixture, using floured fingers, in bottom of pan. Beat cream cheese, yogurt and frosting in same bowl on medium speed until smooth. Beat in eggs until blended. Pour into pan. Sprinkle with reserved crumbly mixture. Bake about 45 minutes or until center is set and dry to the touch. Refrigerate at least 2 hours, until chilled."]
["cake", "butter", "cream cheese", "raspberry yogurt", "chocolate ready", "eggs", "strawberries", "blueberries", "strawberry pie filling"]