Combine cream cheese, lemon juice, basil, salt, thyme; mix until well blended. Stir in chicken, celery, and pimiento; mix well.
Separate dough into eight rectangles, firmly pressing the perforations to seal. Spread cream cheese mixture over each rectangle, leaving 1/2-inch uncovered on one long edge. Roll up, starting with the long edge which has cream cheese right to the edge; seal edges. Brush rolls with egg; sprinkle with sesame seeds. Cut each roll into 4 portions. Place chicken bites, seam side down, on lightly greased baking sheet. Bake at 375° for 15 to 20 minutes, until golden brown. Serve immediately.
Makes 32 chicken appetizers.