Cook the pasta 'al dente' as per package instructions.Peel,cube/chop the potato into small pieces and cook along with pasta in the same salted water.Drain and keep aside.
In a small pan,melt butter and add the onion rings and brown them.
In a small pan,mix together milk and cream and warm these slowly.Take a greased bowl/ individial serving bowls and add a layer of potato + pasta on it.Sprinkle pepper and pinch of salt.Top it with a layer of fresh grated cheese.Then repeat the potato-pasta layer,salt pepper,cheese .
Once the top is reached pour few table spoons of the warmed milk mix and top it with more cheese.
Bake in a preheated oven at 350 for 5-10 minutes till the cheese melts and the sides start browning.
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