Both are Chef Baek shows, but Chef Baek is a judge of High School Lunch Cook-off where you can watch student cook cafeteria food; in Backpacker Chef, Chef Baek & friends cook for their clients, sometimes in large quantities like in High School Lunch Cook-off.
If you're looking for chefs who cook for students, then look no further these will satisfy your cravings. Though High School Lunch Cook-off focuses more on a team of students competing unlike K-Tray which is centered around Chef Bok & Celeb Friends, they are both cooking reality variety shows with the passion of cooking up a great dish
Chef Baek Jong Won also hosts this cooking show and mentors other chefs. Food truck and high school lunch cook-off have a competition portion