PREHEAT oven to 350°F. Place vegetables and milk in large saucepan. Bring to boil on medium-high heat. Reduce heat to medium-low; simmer 20 min. or until vegetables are tender, stirring occasionally. Add cream cheese; cook until completely melted and mixture is well blended, stirring frequently. Stir in Parmesan cheese and nutmeg.
POUR into greased 2-L casserole dish; sprinkle with cracker crumbs.
BAKE 30 min. or until top is golden brown and vegetable mixture is heated through.