Rinse, drain, hull, and slice about 1 quart of strawberries. Place in a large bowl and sprinkle with 1/4 to 1/3 cup of sugar. Let set at room temperature for about 1 hour. Spoon strawberries onto a pound cake slice and top with whipped cream or non-dairy whipped topping. Sift powdered sugar over the top or garnish with a fresh strawberry and sprig of mint, if desired.