If we could just come up with a way to eliminate the whole delivery hassle we'd get rich. Say we started by making and cooking pizza at a centralized location, then froze them. They could be distributed to grocery stores and corner stores along with their regular products.
At home they'd need to be defrosted and the cooking completed. This might be done using a high tech oven/heater utilizing micro waves!! You could keep these delicious & nutritious frozen meals in your normal home freezer compartment, pop one into your microwave whenever the pizza urge hit, and voila - steaming hot pizza on demand with no delivery boy or robot needed.
We could call it "Ice Pizza", Fast Pizza, Chiller Pizza, - not sure, but if we can get the name right we'll make a fortune.
Terry