For feeding multiple dogs, just make sure they have enough room and whatever they do not finish, take up and put away.
My guys eat the cat food I forget to bring inside, if it's a lot, I will fast him for 12-24 hours. If its that small of an amount, I wouldn't worry too much. My guys are opportunistic and will eat anything they think they can sneak.
My two have their set spots they eat (well, a few different spots, but the respect each other's space). In the beginning they would test each other and try to take each others food (ok, it was mostly Tank). I allow growling, as this is a warning and tells the other dog to back down. If the other dog doesn't back down, all that I allow past growling is the raising of the tail, but I am there before the tail is fully up. I've only had one scuffle, because Tank was a jerk and tried to take Calvin's food when people were over last Easter. He thought grandma and grandpa and great grandma being here meant he could be a complete jerk and not follow any rules. I took up all of the food and fed them later, after everyone was gone and the excitement had died down. After that day I stopped feeding the dogs when anyone is over. I feed once a day. Sometimes it is around lunch time (during nap time for the kids) or in the afternoon or when the kids are asleep at night. (sorry for the rambling!!)
As long as you guys supervise feeding times, everything should go well. You could also feed them one at a time outside, if you are more comfortable with that. If you are really concerned, you could attach leashes to everyone and let them drag the leashes, so if you needed to correct someone with more than a verbal correction, you have the leashes handy.