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A customer walks out of the Amazon Go store in Seattle on Jan. 18, 2018.

You won’t find a squeaking hot dog rotisserie in Amazon.com Inc.’s cashierless convenience store. Instead, you’ll see Mediterranean lamb sandwiches, fresh salads and to-go containers of cubed pineapple and melon.

After more than a year of testing with an employee-only focus group, Amazon Go opens to the public Monday in downtown Seattle, putting to the test the online retailer’s technology that lets shoppers grab what they want and leave without paying a cashier. The inventory caters to health-conscious, affluent millennials rushing to their next meeting and could leave the stoner-slacker crowd searching aimlessly for the machine that barfs out chili and cheese with the push of a button.

“We got a lot of feedback on selection,” Amazon Go technology vice-president Dilip Kumar said, adding that most changes over the past year involved the store’s inventory. Amazonians prefer their salad dressing on the side, for instance. And boxed meal kits to be cooked at home should be clearly labeled if they are vegan or gluten-free.

Amazon Go is the company’s most ambitious effort to change the way people shop in stores and a play for the struggling $550 billion…