Cook pasta and set aside

Bake the sweet potato pieces for 20 mins in the oven at 180 deg and put to the side

Brown onion and bacon and transfer to a bowl

Brown chicken and then add mushrooms and garlic and further cook

In another pot or pan melt butter at a medium heat then add the flour. Stir in chicken stock and milk slowly continuously stirring until all liquids are added and the sauce has thickened

Remove from heat and season with salt and pepper. add all cooked ingredients in an oven dish and stir to combine.top with cheese and bake till cheese has browned.