I'm sure you'll be able to find something that you like, but I'm not sure if you'll be able to find something that you like.
I tried FamilyMart's (Famima) prepared dish, "Open-Flame Grilled Beef Sagarion Sauce. This is a dish where you can enjoy meltingly tender beef with sweet and sour sauce and tangy black pepper. Calories are 117kcal, protein 10.4g, fat 7.0g, sugar 3.0g, dietary fiber 0.2g, salt equivalent 1.8g.