I found this wonderful printable called ABC Cafe it is fantastic Little Boo spent ages playing. The idea is that the customers make their orders by all having letters which represent the food they want to order. The printable then has foods which begin with each letter of the alphabet so all you do is match the correct food to the letter of their order or vice versa. Little Boo wrote down their orders, then had fun finding the correct food.
To help her I placed a choice of three foods for her to match as having all the foods was a bit overwhelming. As you can see from the picture we used Little Boo's Dolls to play but the printable does provide customers as well! We had about three tables in the end. Hope that you find this idea fun. I love it when I find something for free.