You could combine the two and add beer. You could call it Skittlebrau.
Barby’s!
Back when I was on the road for work 25-odd days a month, I always thought a farm-fresh restaurant located at rural exits (along side Rally’s, Subway, McDonalds, Hardee’s, etc) would be a nice thing to have. Have one or two signature items on the menu, but then everything else would be based on the local agriculture and season. I’d have shepherd’s pie and a cheeseburger as the signature items. The shepherd’s pie would come in a cup with various items of your choice inside the mashed potatoes. I’d call it “The Farm Stand” or some such name.
Either that or I’d start a soul food/Thai fusion fast food joint and call it “Black-Thai Affair.”
Fresh vegetables and/or tofu, roasted with herbs or deep-fried in light tempura. A selection of sauces
My killer Moroccan beans with rice
Macaroni and cheese - baked in house
Cheese Pizza by the slice. No other toppings. (WHY are there no drive-throughs offering this?)
Coca cola soft drinks
Fresh herbal teas over ice
Large iced water or coffee free with order (no hot coffee)
This is a fully vegetarian menu, and mostly vegan. There are gluten-free selections, but also things carnivores like. Everything can be made ahead, frozen, and either heated quickly or kept hot for long periods before serving.
French bread pizza
I’m picturing a Subway-like setup; you start with a halved French bread, then you pick a white or red sauce, mozzarella cheese goes on, then you pick your toppings. Into the toaster for 30-60 seconds, wrap it up, would you like a drink and chips with that?
Hey, I’m begging for this.
Don’t worry, I get the math. Speed plus convenience plus quality ingredients equals high prices to the customer. Done! I’m pleading, don’t half ass this. Do it right and I promise at least one customer.
While not “French Bread” pizza, the pizza with a subway-like setup concept is taking off:
Cheeburger. Pepsi.
Oooh … this is a great idea. Should’ve been done forever ago. And Wendy’s has proven that chili, of a kind, can be made quickly and stored safely in a fast food environment.
Your chili emporium could also offer baked potatos to slide under that loaded chili. Mmm-mmm.
We park our cars in the same garage! 
Another side dish would be Spanish rice, made from scratch with fresh peppers and smoked paprika.
Or maybe paella. Mmmmmmmmmm, haven’t made either one in ages! :o
I’ll have a hot dog and a coke, please.
Schnitzelhaus! Name a meat, we’ll pound it into a 1/4 inch frisbee, bread it and deep fry it!
But, a bit more seriously (though I love schnitzels), I would take the idea of Chicago style Italian beefs and Philadelphia roast pork sandwiches and try to take them both national in a fast food restaurant.
Hamberders
Oostburgers, a hamburger with a bratwurst on it.
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I had an idea of a simple bar, that each day offered a simple menu. But a very, very limited choice. Cheap. Maybe an all you can eat sort of thing. Or 2 bucks for another plate/bowl.
Each day something different. That’s it, other than that you could always get a simple salad or ham or turkey sandwich.
Monday - Chili
Tuesday - A great soup/bread
Wednesday - Lasagna
Thursday - Meatloaf
- …
Mix it up. A locals place.
Sort of like that. I think that keeping the kitchen simple, you could make good food and a lot of one dish cheaper than trying offer a full menu. I think you would have much less waste, and would need less staff. Make money on beer.
Make note, I’ve never worked in any service/restaurant industry. So I’m probably off my nut.
If you could always offer cheeseburgers and a good plate of french fries, I’d move in to the corner booth.
Maid-Rite. California needs loose-meat sandwiches.
No. Nobody needs loose meat sandwiches except perhaps Iowa. I really don’t get these things. I mean, I have them when I’m in Maid-Rite land, but I just don’t get why they are a thing. Apparently, we had one here in Chicago for about a year within the last decade, but it didn’t last long. Honestly, I would have visited, had I known, but apparently, the word just didn’t get out.
How about
All Destinations House Of Chicken
seems at least a little less derivative/commercial and a little more world traveler classy