When preparing the onion pieces, chop up 3 extra onions (about 2 ½ cups). Double bag them and store in the fridge. You will use these in the Tomato Basil Soup for Meal 3, and the Christmas Eve Meat Pie for Meal 4.
Save 2 cups of the leftover pot roast to make sandwiches for Meal 3. Plan accordingly to add extra meat to cook for today so you have leftovers.
If you have leftover carrots, potatoes, onion and celery from the Pot Roast meal, drain and save them to puree in the Tomato Basil Soup to give it more body and flavor.