I don't know if these are good suggestions for Mother's Day, but:
-Brio in Lombard (Yorktown Mall)is more kid friendly then I thought in would be. For a couple of bucks more your child can and go into the kitchen and make their own pizza.
You know a restaurant is good when a 7-yr old wants to go there for their birthday. It is a little pricey, though.
-Claim Jumper (same area as Brio)is also family friendly and a little easier on the wallet.
-Anywhere that has a buffet/brunch is usually a good bet.
One year we went to the William Tell Holiday Inn.
Happy Mother's Day! Hope you had a great one no matter what you do.