If you're looking for manga similar to Wild Life, you might like these titles. All recommendations are made by Anime-Planet users like you!
Soma Yukihira's old man runs a small family restaurant in the less savory end of town. Aiming to one day surpass his father's culinary prowess, Soma hones his skills day in and day out until one day, out of the blue, his father decides to enroll Soma in a classy culinary school! Can Soma really cut it in a school that prides itself on a 10 percent graduation rate? And can he convince the beautiful, domineering heiress of the school that he belongs there at all?!
They both have simular senses of humor with a protagonist that is constantly underestimated but perserveers despite that. "Shokugeki no Souma" has a lot more ecchi moments, though. Also, they both have a female love interest whose feelings the main character is oblivious to. Both main characters are generally relaxed but can become very focused/serious when necessary.
Hope that helped!