Peel and finely chop the onion and garlic. Dice the peppers and courgettes. Heat the oil in a pan and fry the mince. Add the onion, garlic and diced vegetables and sauté. Stir in the tomato purée. Add the pasta, soup and thyme, season with salt and simmer until the vegetables are al dente. Cut the feta into cubes. Season to taste with salt and pepper and serve garnished with the feta.