Heat oil in pan and fry mince.
Add onion, garlic, thyme and carrot, cook until soft.
Add tomatoes and KNORR Spaghetti Bolognaise Dry Cook-in-Sauce.
Prepare the KNORR Classic White Sauce following packet instructions.
In an oven dish layer potatoes, mince and white sauce.
Repeat 3 times, finishing with a layer of potatoes, then sprinkle the Parmesan cheese on top.
Cook in a preheated 160°C oven for 90 minutes.