Stir-fry cabbage and add drained tuna, then serve it over rice! (Sauce: 1 spoon soy sauce, 1/2 spoon oligosaccharide, 2/3 spoon vinegar, a little sesame oil) Side dishes: cucumber or tofu.
Shred the cabbage and onion.
Heat cooking oil in a pan and stir-fry the onion.
Add the cabbage and stir-fry together.
Season with soy sauce, minced garlic, and pepper.
Place the stir-fried cabbage on top of rice to finish.