It's fairly easy to set up, since you just have to add the Grubhub skill to Alexa and select which prompts you want to use. So you can ask Alexa to "open Grubhub" or say "Tell Grubhub I'm hungry," before being given a list of the last three meals that you ordered -- since that is the limit of your choices right now. Alexa will then tell you how long you can expect to wait before that chicken pot pie turns up.