In essence, here is a great way to think of superior business planning. Imagine you are taking a road trip from California to New York. No planning ("flying by the seat of your pants") would involve you getting in the car and driving "East" on every freeway you come across. Adequate planning would involve mapping out your course, planning where to stay overnight, where to eat, sights to see, and so forth.
Finally, a business plan should be error - free. This is important because your business plan defines who you are as a business person. If it turned out sloppy, then that does not speak too highly of you.
Include a personal background. There are many good reasons to start a catering business and you should let readers know why you are drawn to this industry above all others. Outline your working history and attach any relevant reference letters as an appendix to the plan.
These areas require that you present a strong case for your proposed financial expectations, grounded firmly in the supporting information of your plan, including marketing, market analysis, business operations, and so forth. Having confidence in your business and in yourself will assist you in demonstrating the potential for your company and in being able to deliver what your investor is looking for. Doing your due diligence and knowing the facts surrounding your business and your market will prove to be of great benefit when selling your business case, both in writing and verbally, to the lender you are seeking funding from.