Heat oil in a large pot (I used dutch oven) over medium-heat, add the beef and sear one all sides until browned, about 6 minutes (3 on each side). Add the onions and cook until transparent, about 2-3 minutes.
Add the celery and carrots to the pan, mixing through the flavours in the pot. Cook while mixing occasionally for about 4-5 minutes, then add the cabbage and cook for a further 5 minutes until beginning to soften; add in the garlic, and cook until fragrant (about 1 minute), mixing all ingredients through.
Add the stock, diced tomatoes, parsley, dried thyme and basil, onion and garlic powders. Mix well and bring to a simmering point; reduce heat to medium-low and cover with a lid.
Simmer for 10-15 minutes, or until the cabbage and carrots are soft. Season with salt and pepper.
Serve with chopped fresh parsley.