Cut the chicken breast into bite-sized pieces.
Prepare rice cakes and fish cakes.
Add olive oil to a pan and stir-fry the chicken breast.
Add the rice cakes and fish cakes and stir-fry together.
Mix gochujang, red pepper flakes, soy sauce, minced garlic, and water to make the sauce.
Pour the sauce over the ingredients and simmer.
Add green onions, mix well, and finish.