- Mince garlic; and finely chop onion, carrot and celery. 
- Heat up olive oil in a skillet over medium heat. Add garlic, onion, celery and carrot and cook for a few minutes until fragrant. 
- Add turkey mince to skillet and cook until no longer pink. 
- Add frozen vegetables and cook for a few minutes, stirring frequently. 
- Add tomato paste, thyme and Worcestershire sauce. Stir to combine. 
- Dissolve flour in chicken stock, and add to skillet. Stir and cook until thickened to desired consistency. 
- Remove from heat. Taste and add salt and pepper according to your preference. Then pour everything into a baking dish. Let cool completely.