Heat butter in a pan, add the flour and fry until slight brown in colour.
Add salt, paprika and pepper, stir, add the milk and boil.
Now add 100 g of cheese. Stir until cheese melts and gets blended well in the milk, remove from flame
Preheat the oven at 220 degree F for 5 mins
Quickly layer the baking tray with a layer of macaroni, pour in half of the Bechamel sauce. Layer out rest of the macaroni and again pour the rest of the bechamel sauce. Now at the top, layer it with rest of the cheese and tomato. Sprinkle herbs of your choice.
Place the tray on the bottom rack and bake 220 degree F for 10 mins.
After that, grill for 5 mins until a golden crust forms at the top of the macaroni.