1. Cut the half onion into small pieces. Cook it in a pan over medium heat with olive oil.
2. While the onion is cooking, peel the carrots and cut them into small pieces. Add them to the onion.
3. Also add the zucchini, cut into small pieces.
4. Season the mixture with salt and pepper.
5. Place a lid on the pan and let it cook over medium heat for about fifteen minutes. Towards the end of cooking, you can increase the heat for a few seconds to grill the vegetables.
6. Once the vegetables are cooked, add the desired amount of sour cream, curry, and grated cheese.
7. Mix well.
8. Let it rest with the lid on for 1 to 2 minutes, just enough time for the cheese to melt over the vegetables.
9. It's ready!