Now that star chefs like Danny Bowien and Eric Ripert have embraced the pop-up dining experience, temporary restaurants can generate considerable hype. Dinner Lab is not that kind of pop-up. The company — which now spans multiple cities — celebrates the restaurant industry’s next generation, and gives would-be restaurateurs a chance to test-run a concept. Each meal unites adventurous diners with an under-the-radar chef, and guests are asked to give feedback on the menu as soon as they’ve finished their meals. If that sounds a little more like a guest-chef dinner series than a real pop-up, know this: Dinner Lab remains true to the spirit of the flash restaurant, and dining experiences can take place everywhere from factories to rooftops; each dinner is unique. So how do you join? An annual membership fee grants you access to purchase tickets to biweekly events, which typically cost from $40 to $95 per person.