4 carrots (rinsed)
2 medium onions (rinsed)
1 (24-oz) bag baby potatoes (rinsed)
8 celery ribs (rinsed)
2 tablespoons olive oil
1 standing rib roast (4-5 lb)
1 teaspoon kosher salt
3 sprigs fresh rosemary (rinsed)
3/4 cup horseradish sauce
1 1/2 teaspoons Worcestershire sauce
1/4 teaspoon pepper

3 cups seedless grapes (red, white, or mixed; rinsed)
cooking spray
2 refrigerated prepared pie crusts
1/3 cup brown sugar
1/4 cup all purpose flour
3 tablespoons port wine, divided
1/4 cup egg white substitute (or 1 egg; white only)
1 tablespoon coarse (raw) sugar, optional