Baby Shower at a restaurant?

I offered to host my friend's baby shower a while back and have already made the reservation for Cantina Laredo. The invitations have already been sent out and i am already aware and willing to pay for people's lunch. However, some of the dishes on the menu are a little too pricey. I will be telling them that I will pay for food, but if they would like drinks they need to pay for them. My main question is, would it be tacky to print off my own menu with the reasonable priced dishes (on very nice paper and in the theme of the restaurant of course) or would it be acceptable? I don't want to seem tacky, but I also don't want to break my bank! Thank you in advance for all of your advice!