We’ve discussed the reluctance of people to eat leftovers day after day. Lifestyle magazines often suggest ways to use leftovers for several days in a row, but those methods typically involve a meat-centric meal (e.g., Day 1 roast, Day 2 sandwiches, Day 3 salad) and don’t really apply when you are dealing with a prepared meal like soup or casserole. However, here are some suggestions for how to…