The biggest mistake people make when making a resume or CV is using generic filler statement like:
- reported to ceo
- generated audit summary report for clients
- created time to interface with IT staff
This is a giant waste of space and isn't incredibly important. Try to highlight accomplishments you have from the position with supportable information. Do you know that the fries were found to be tastier? If so, explain how (i.e. customer taste test survey, manager told you sales are up after your new idea):
- Lead a 15% increase in monthly french fry sales by developing and implementing changes to the french fry frying technique and recipe
- Accomplished a 20% reduction in the order-to-window time by optimizing the burger order processing
- Other duties were standard fry cook duties such as raw ingredient inspection and preparation, meal preparation, and grill maintenance and cleaning
I come from a non-science background before medical school and one of the biggest issues people have in their resumes is trying to make standard roles sound like accomplishments and take up unnecessary space. If you have accomplishments, make sure to highlight them, and don't drone on for lines about standard functions. Mention them in a line but no more than two lines if your responsibilities were that extensive. If you were only a "staff" but were acting as a manager, for example, make sure to mention that and the responsibilities that were additional to your staff role since that's worth noting and not something everyone else in your role got to do. If you don't have a whole lot of unique stuff, that's okay, try to write nicely without lying, but include other stuff you've done like volunteer work or unique projects you've been involved with and that set you apart.
I don't know how perfectly this advice translates from resume to CV, but I have a feeling, and I've seen, people make unnecessarily long CVs and resumes that make you want to laugh when you read it. It would've been more respectable for them to keep it short because you know they're not trying to puff up their chest with an inflated CV/resume.
Specifically for your case, maybe try using one heading for the role, assuming it was the same at each location, while illustrating some basic functions. Then, in the sub heading for each location, you can list employer specific accomplishments and the dates of employment. It won't hurt to use a short intro blurb to that type of role by saying, "I worked for several years as a fry cook at various eateries/fine dining (depending on the quality of the place). In that capacity, the general responsibilities were .... with exceptions or achievements highlighted in each employer section."