Yayoiken presents a classic Japanese teishoku-style menu that feels both comforting and practical, built around balanced set meals that suit everyday dining. The highlights show a strong focus on homestyle cooking, starting with チキン南蛮定食, which delivers a rich, tangy-sweet profile typical of the dish, paired with rice and side accompaniments that make it a filling staple. The すき焼き定食 brings a warmer, more indulgent option with its sweet-savory simmered beef character, while the サバの塩焼定食 salt-grilled mackerel set stands out for its simplicity and clean, savory flavor that emphasizes traditional Japanese breakfast-and-lunch comfort. For heartier appetites, the 肉野菜炒め定食 stir-fried pork and vegetables set offers a satisfying balance of protein and vegetables with a wok-style depth, while the 味噌カツ煮定食 サイドメニュー leans into a richer, miso-based comfort profile that pairs especially well with rice. The menu also includes warming bowl options like 鶏生姜鍋 これは旨い, which feels especially appealing for colder days thanks to its ginger-infused broth. For lighter yet complete meals, the 野菜タンメン ご飯 provides a vegetable-forward noodle-and-rice combination that still feels hearty. Convenience is also clearly a priority, with テイクアウト かつ丼 takeout katsudon pork cutlet and egg on rice offering a reliable grab-and-go option without sacrificing flavor. The breakfast selections, including 朝定食 目玉焼き, 朝定食 のり, and 朝定食 ご飯, round out the menu with simple, affordable morning sets that emphasize rice, egg, and traditional Japanese staples. Overall, the menu reflects a dependable everyday dining experience centered on comfort, variety, and value.