HEAT oven to 400ºF.
PREPARE Dinner in large saucepan as directed on package. Meanwhile, mix eggs, spinach, 1 Tbsp. Parmesan and garlic powder until blended.
ADD spinach mixture to prepared Dinner; spread into 9-inch pie plate sprayed with cooking spray. Sprinkle with remaining Parmesan.
BAKE 15 min. or until center is set and top is lightly browned. Let stand 5 min. before serving.