Lets see how far I can take a turkey from thanksgiving. It cost ~$20. Upon cooking, it was 2 servings. Took off the rest of the meat, froze 2 bags full, left one in the fridge, turned the turkey into 1/2 gallon (4 pints) of stock (add $2 for lids, need to find these cheaper). One bag of meat was turned into turkey salad, 3 portions. Add $1 for the other ingredients. Took 1 pint of the stock, 1 thing of tomato sauce ($0.50), and some carrots ($0.50) and made soup (4 portions).
9 portions thus far with 2 bags and 3 pints remaining. If used the same way as above, this equates to $29 spent for 27 portions. Approximately $1/serving :D.