Cut the tteokgalbi into bite-sized pieces.
Chop garlic and onion.
Heat olive oil in a pan, then sauté the garlic and onion.
Add the tteokgalbi and stir-fry together.
Pour in tomato sauce and let it simmer.
Add the cooked pasta noodles to the sauce and mix well.
Finish with parmesan cheese and parsley.