Bake cheesecake at 325°F for 45 minutes, cool, then freeze 4–5 hours.
Microwave strawberries, strain juice, simmer to ¼ cup, cool and mix with milk, egg whites, vanilla.
Mix dry ingredients, add butter, then strawberry mixture until smooth.
Bake cake layers at 350°F for 20–25 minutes, cool and level.
Beat frosting ingredients until thick and spreadable.
Layer cake, add cheesecake center, crumb coat, chill, then finish frosting.