SWEET-HEAT Apricot-Dijon Spread: Mix ingredients until well blended. Refrigerate until ready to use.
FOR each serving: Spread 2 bread slices evenly with 2 Tbsp. Sweet-Heat Apricot-Dijon Spread. Top 1 bread slice with 1 cheese food slice, 2-1/2 oz. chicken, 1/3 cup spinach and second cheese food slice. Cover with remaining bread slice.
HEAT flat-top griddle to 350ºF; spray with cooking spray. Add sandwich; cover with dome lid. Grill 2 min. on each side or until cheese is melted and sandwich is golden brown on both sides. Cut diagonally in half.