I spent about $56 on the ingredients and had enough ingredients to serve 20 meals at $5 per meal, the revenue would in theory be $100. That's about $44 in theoretical profit, the time of preparation and cleanup is about 3 hours, so $14.60 per hour in theory, although I gave the food away for free since it was my first time and I'm simply trying to attract clientele.
If I got the ingredients from Costco or a restaurant supply store the cost of the ingredients would likely be less. If I got better at cooking I could possibly cut the prep time from 3 hours down to maybe 2.
I also fed myself dinner, so I saved time and money in alternative cost because I would of had to eaten dinner regardless. I'm just one person though, if I had a family of 4, the alternative cost savings would be higher. Having children could actually reduce my labor costs significantly as I could have the children deliver the meals to the neighbors.