I haven't read the other responses, but I have a 27-mth old who I'm convinced is just a "stuffer" & he may or may not grow out of it. I get really really tired of bugging him about it &, since I'm with him all day long, I typically just let him go at his pace during breakfast & lunch. And usually, it's not nearly as bad when I'm not "paying attention" to how he's eating.
But when dad gets home & we're at the dinner table, that's when it really becomes an issue. Honestly, I think my hubbs
gets too concerned about it, reminding him to chew, reminding him to take a bite, etc. & then my son just does it even more! I just call him Kobiyashi & be done with it (that's the guy that wins the hot-dog eating contest every 4th of July in Long Island. :>)
Since your daughter is still quite young, I do think it's a good idea to only give her small portions of one type of food at a time. Yes, she'll still stuff, but that will help her learn that ideally, all the food will be chewed up & swallowed by the time she reaches for another item on the tray. But, I wouldn't necessarily assume she'll "grow out of it" either. It's always good to reinforce good habits, proper manners, etc., but give her grace too. :)