If you don't have time to train her and get her under control and used to behaving so that a simple "uh oh" or "no" or simply a look would stop her - which is entirely possible and what training can achieve - you might try this.
ClickerSolutions Training Articles -- "You Won the Prize!"
By working with a dog teaching it obedience, it learns impulse control and to work for you for praise and treats, learns how great it is to make you happy because it wants to be your team member and that its best life comes when it doesn't misbehave, you can totally modify your dog's behaviors and wind up very quickly with a well-behaved little companion who is a joy to live with. Playing challenging games, lots of exercise and a good home training program for 5 minutes a day 2 or 3 times a day will make for a happy, well-behaved pet who loves you and would NEVER interfere with your dinner by barking. My Tibbe sometimes will come and stand in front of me when I'm eating and all I have to do is look soberly at him or at most point to the couch and he blithely goes over and jumps up on the couch, I smile and thank him and he waits until dinner is over, knowing I'm proud of him for controlling himself and behaving. After something like that, after dinner is done, I will go into the kitchen and bring him a treat, give him a little rub on his rump for being such a sweetie and he's a happy camper - feeling he got his due.
You do kind of have to understand sometimes our food just smells sooooo great they get carried away - they
are dogs with impressively talented noses at picking up all the wonderful smells down to the molecules and I'll bet sometimes it's
very hard to have to stand and watch and get NONE of that great-smelling food we get all the time. So, I give him his treat and a rub and let him know he's a great boy for being so good about it all. He puts his ears back and kind of squints his eyes in pleasure to be acknowledged for being so good. That comes from working with a dog and helping it learn how to control its impulses, want to please and know you'll repay him in kind. But until you can do that, try the "You Won A Prize" game and see if it works! But then work with your dog and train him.