Draft a memorandum on the five most important pieces of information a layperson (non-industry person) should understand about the topic. Describe in detail why these are the most important pieces of information. How to start a catering business? 1. Find your specialty. When your catering business fits in a specific niche, for face less competition from the big, one-size-fits-all caterers. 2. Investigate local licensing and permits. 3. Create your menu. 4. Plan your location. 5. Get ready to buy equipment.