Put oatmeal and water in a pot, bring to a boil and cook oatmeal rice.
Finely chop carrot, onion, and bell pepper.
Heat olive oil in a pan and stir-fry the carrot, onion, and bell pepper.
Add tuna or chicken breast to the stir-fried vegetables and fry together.
Place rice, vegetables, and protein in a bowl and season with salt and pepper.
Shape the rice mixture into round, flat patties to form rice burgers.
Wrap the rice burger with seaweed or cling film.