BTW - when I worked at McDonald's, it was male only in the store. White shirts, and a thin black tie.
The store I worked was on Nicolett Avenue near 80th Street in Bloomington, MN. It's still there. It started as just an arches store with walkup windows. Not too long before I worked there they created an enclosed area around the windows, where customers could sit and eat. Everything was ceramic tile, for ease of cleaning. When I worked there I heard it was one the top three sales volume stores in the system.
The store operated with two shifts. There was a full-time crew that worked M-F, 40 hours per week. They arrived about 10 am, got things started and opened the doors at 11 am and took care of the lunch crowd. In the afternoon, they kept two to three people working the cooking and registers, while the rest of the crew took work breaks and did other prep work. One of their big activities in the afternoon was peeling, slicing, and rinsing potatoes for french fries. They would put the slices in fry baskets, blanch them, then stack the blanched fries in the back of the store for later use.
That crew would stay on through the dinner rush hour, Meanwhile the part time staff - almost entirely high school kids like me - would show up about 4 PM to help with the evening rush. After evening rush, the full-time crew would go home, and the HS kids would finish the day, with support from one of the store assistant managers. Weekends were filled entirely by the HS work force.
The full-time crew was an interesting crowd. Most of them were HS dropouts, and quite a few had criminal records. Some of them were not people who you would ever want to put in front of a cash register, both because their appearance wouldn't create a good impression and because maybe it wasn't a good decision to trust them handling money. Many of those guys took the job because they wanted a letter of reference. Something they could take to another employer, attesting that they were reliable, they showed up for work every day, they took instruction, understood the job, and generally did what was needed. That was a stepping stone they could use to move forward in life. McD's didn't pay them much for their work, but everyone understood the bargain. They show up for work, they put in time, they work hard, they get the letter that they need to advance beyond slinging burgers and McD's. The next step up for many of those guys was moving to a warehouse job.
My first two weeks on the job, I was mostly one evening rush dressing buns for a cook on the grill, who was one of the full-timers. It was a humbling experience.
The picture below is similar to what the store looked like after they created an enclosed seating area around the original walkup windows. I think our store was about 25% wider than this one, the enclosed area was bigger and had ceramic tables and chairs where customers could eat. I did a lot of mopping and cleanup in the seating area in my early days at the store. I remember the price for a burger was 18¢, a cheeseburger was 25¢. I don't remember the other prices, but I'm sure you could get cheeseburger, fries, and a soda for less than 50¢.
I always thought that slice of cheese on the cheeseburger was a big money maker. Add a slice of cheese, which involved only insignificant store labor, and charge 40% more for the burger.
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This has been a nice trip down memory lane.
FWIW - a few months after I quit, McD's switched to frozen fries instead of creating fries from scratch. The decrease in quality was noticeable. My HS crowd in Richfield/Bloomington/Edina used to go to McD's just for the french fries. After McD's switched to frozen fries, Country Kitchen, with a store near 98th and Lyndale, became our burger and fries go-to place.
- they wanted to make me a manager but I declined/going to school). 
