step 1
Pre-Heat the oven to 190c/fan 170c/ gas mark 5 .Boil the potatoes and squash together until begining to go soft.Meanwhile Fry off the mince, when the mince is thourghly cooked ad the peas, mushrooms, water and gravy granuals.When they've simmered together for about 2 minutes add the lea'n'perrins .
step 2
Once the mince is completed mash you squash and potatoes( only if their soft enough though!)with the butter, milk and 20g of the cheese.You may like the mash a little lumpy but if not push through a seive.
step 3
Place the mince in a heatproof dish and then add the potato sprinkle with the rest of the cheese to finish.Cook for 25 minutes until golden brown and bubbling gently.