MELT butter in large saucepan on medium heat. Add onions; cook 4 min. or until crisp-tender, stirring occasionally. Stir in nutmeg; cook 1 min. Add squash, apples and broth; stir. Bring to boil. Reduce heat to medium-low; cover. Simmer 50 min. or until squash and apples are tender, stirring occasionally.

COOL soup slightly. Add, in batches, to food processor or blender; cover. Process until smooth; return to saucepan. Cook on medium-low heat until heated through, stirring occasionally.

LADLE soup into eight serving bowls just before serving. Add 1 Tbsp. of the cream cheese spread to each bowl; stir gently to swirl.