That's a good question, Marilyn! This recipe is nearly seven years old at this point, so I'm struggling to remember exactly why I did that (maybe search engine recognition?) but baby Bella mushrooms are just small portobello mushrooms so perhaps that's why. Either way, standard (large) portobello mushrooms will also work well in this recipe if that's what you prefer. Hope this helps clarify!

Thanks so much for your sweet words and support, Karissa! Also, I'm not sure what happened to the comment box on the risotto post -- I noticed it was missing yesterday, and we're working on fixing it! I'm guessing it was missing for you, too?