For quality control, you need to mention HACCP. Assessment of hazards --> identification of critical control points (points where a hazard may occur) --> setting standards for each control point --> monitoring critical control points --> description of procedures if standards are not met --> keeping accurate records of variations from the standards --> assessment of system. Wrte down your standards (like, the quiches have to be .... in size, and if this is not met, the production line must be readjusted).
For the production techniques, take a look at a recipe book or the internet (I'm not sure how they're made). They probably only show domestic production. If you can't find any information on the inductrial production line, then just guess it. If they use an oven in the domestic one, then they;d probably use a commercial size oven that already has been adjusted for an optimum quiche product.
When mentioning the package, explain the functions of a package. Choose a packaging that will have a positive impact on the environment (like cardboard or biodegradable plastic, etc). Maybe even create a sample of a pacage (you can buy quiches from the supermarket...you can then take a look at the nutritional information and create a similar one for yours).
For storage, it'll probably be placed in the freezer, and heated in the oven when desired. Therefore, freezer storage will be used (where the temp. is around -15 to -30 degrees celcius).
The impact of the mini quiches on the individual would be that of convenience. They are mini, and can be eaten basically anywhere, meaning convenience, which is currently in high demand. I guess that would be the same for impact on society, but just on a larger scale. Impact on the environment- you can mention the packaging (ho its recyclable) and the actual product.
Possible causes of spoilage- mould for the cheese. Prevented by placing it in cold storage (0-5 degrees celcius). Physical spoilage- getting crushed (the actual product), etc.
Hope that helps.