Cabbage Tuna Bowl (No Rice, No Eggs)

Shred the cabbage.

Slice the onion.

Drain the oil from the tuna can.

Add olive oil to a pan.

Stir-fry the onion and cabbage.

When the vegetables soften, add the tuna and stir-fry.

Season with soy sauce and pepper.

Serve in a bowl to finish.