Cut cabbage into 1cm squares. Peel and chop potatoes into bite-sized pieces, soak in water, and drain. Mince garlic and onion.

Place potatoes and 2 tbsp water in a microwave-safe container, cover loosely with plastic wrap, and microwave at 600W for 5 minutes. Drain and mash with milk and seasoning to make mashed potatoes.

Heat salad oil in a pan over medium heat, sauté garlic until fragrant, then add onion and cook until translucent. Add ground meat and cook until browned. Stir in flour and cook until no longer powdery.

Add cabbage and cook until softened. Stir in tomato sauce ingredients and simmer covered for 5 minutes. Uncover and cook for another 3 minutes to thicken.