Johnny J's Diner

“The atmosphere is so much fun and the food and service is always amazing!”

Alicen Outlaw★

We ordered to go here on Tuesday. We ordered the triple decker club, egg salad sandwich, chicken cordon bleu, and two milkshakes. The egg salad sandwich had a little bit of mayo/mustard mixed together and thrown on a smashed hard boiled egg, with lettuce and tomato. It was bland. There were no seasoning or anything. The club was like a regular sandwich. The chicken cordon bleu is the photo posted with this review. That is not chicken cordon bleu. It was absolutely disgusting. They didn't give us utensils to eat our food with, as we weren't going home to eat it, so we took it home to reheat lat

gaynor henry★★★★

Our server Mercedes A, was terrific. Food was good, but not stellar, to be fair it was really busy.

Emmanuel is Savage★★★★★

I had a great experience at Jimmy John’s Diner. From the moment you walk in, the atmosphere feels welcoming and laid-back—exactly what you want from a classic diner. The staff was friendly, attentive, and made sure everything came out quickly without feeling rushed. The food really stood out. Everything tasted fresh, hot, and made with care. The portions were generous, and you can tell they don’t cut corners on quality. Whether you’re stopping in for breakfast, lunch, or dinner, there’s something on the menu that hits the spot. Overall, it’s a solid go-to spot in Casper if you’re looking for

Eric Thomas★★★★

10/12/2025 Update Two visits 3 weeks apart, long wait for food, 1 hour after ordering, and waitress never stopped at table from order to food service to give us update. Owner stopped after and I let her know that servers keeping patrons updated, refilling drinks during long waits, helps. 2nd visit today was even worse. I have never in my life left less than 20 percent tip, except today. Young server, could’ve cared less about service at all. Waited 45 minutes for food, owner refilled drinks, food came partially out and not as ordered for one in our party, had to be redone. Was just watchi