Late one night I was working with a cheapskate friend and we stopped into a major-named franchised donut shop.
Curious, my friend asked what do they do with all the stale bagels and donuts? Do they go to the stuffing factory?
The answer was "No", they are thrown into the dumpster out back each night around 1AM. A homeless guy comes by and they give him a buck to drag the bag to the dumpster. In all the years this hobo has done this, he has not once taken a donut out of the bag.
My friend then asked if he could take a bag or two of donuts and bagels to a scout troop he works with. They said "Sure. Go a head, we'll pack them up with an old box for you to make it easier to carry!"
So there we were with about 50 pounds of stale donuts and and bagels for him to serve to his scout troop.
I'm sure pigs would enjoy them as well, but I've heard that pigs fed on fast food tend to be much fattier and the meat tasted really bad and had to be thrown out. I guess it's all that saturated fat and hydrogenated criso they use.
I'm guessing the bagels would be fine.
Also, workin in NYC, I've seen the deli-buffets that charge the lunchtime crowd by the pound, tend to throw out all the stuff each night around 7:30PM. there are a couple homeless folks I see each night that go through the bags and pull out trays of sweet and sour shrimp, ribs, fried chicken, tofu, vegetables, lo-mein, etc. Soup is put into plastic bags and put curbside in buckets or boxes. another homeless guy seems to specialize. He hits all the bakeries in town and collects rolls and croissants.
If you don't live far from the city, you could probably get your pick of items for your pigs by negotiation with the managers of these establishments.
If I were raising pigs, I would start their meal off with a nice bucket of chicken ceaser salad, followed by either clam chowder, or shrimp gumbo. Lots of buttered rolls! Their main entre would vary from day to day with fried chicken, roast beef, or pasta with meatballs, or sushi. Desert would probably be Jello with fruit, or old cottage cheese with fruit.