PREHEAT oven to 375°F. Mix spinach, cream cheese spread, dressing, eggs and 3/4 cup of the shredded cheese in large bowl. Stir in 1/2 cup of the crushed crackers.
SPOON spinach mixture evenly into greased 2-L ovenproof casserole dish. Sprinkle with remaining 1/2 cup crushed crackers and remaining 3/4 cup shredded cheese.
BAKE 20 to 25 min. or until heated through and cheese on top is melted.