I really don't think that is a good substitution, Sequi, because there is not enough protein and too many carbs. A substitute food should have around the same number of grams of protein as carbs, have fat below 3 grams, and have 90 to 110 calories.
I just wanted to mention this because it seems like a lot of the foods people are coming up with are pretty far off by comparison with Medifast foods.
"My religion is kindness." --His Holiness the Dalai Lama