A super side dish for all the family to enjoy. Inspired by British school dinners this cheese and mashed potato pie is the answer all kids want to hear when they ask 'What's for dinner tonight?'Potatoes mashed with cheese, oven-baked in a casserole dish topped with more cheese, and your choice of onion, tomatoes, or breadcrumbs. Perfect served with sausages, chicken, and vegetables, or as part of a roast dinner.Try adding chopped bacon and onion in with the mash to serve as a cheap easy main meal.
Course: Dinner, Side Dish
Keyword: cheese and onion mash, cheese and potato bake, cheesy potato bake, childrens, kids, mashed potatoes, school dinners, side
Yield: 6People as a side
Stainless Steel Stock/Sauce Pan
1200gramsPotatoes (6 medium/large potatoes)suitable for mashing (maris piper are our favourite)
120mlMilk (½ cup)any varity (we use semi-skimmed)
250gramCheese (2 cups) medium - mature cheddar is best for flavour.
1tbspoil or butter½ for frying onion + ½ for greasing dish
Salt & Pepper
Optional extras or alternatives
6slicesSmoked Baconchopped & fried to add into mash
2largeTomatoessliced for topping instead of onion
3tbspBreadcrumbsto sprinkle on top for extra crunch
Preheat oven to 220°C/ 200°C fan / Gas mark 7 / 425°F.Chop the potatoes into even-sized chunks. Place in a large saucepan. Add just enough water to just cover them. Add salt to the water.
Bring to the boil on high heat, then turn the heat down to a gentle boil for about 20 minutes.
Meanwhile, add sliced onion rings into a pan with oil or butter. Fry on medium-low heat.
Cook until soft and golden.
When the potato is soft enough for mashing, drain and leave to air dry, clean out the pan. Add milk and mustard into the pan and warm up whilst stirring on low heat.
Add potatoes to the milk and start mashing with a masher.
Add ½ of the grated cheese (125g/1cup) and continue to mash over low heat
Mash until cheese has melted and the mash is lump-free.Optional- if you want to add bacon or onions into the mash you can stir it in now
Prepare the casserole dish by spreading butter or oil all over the bottom and sides with a kitchen tissue.
Pile the mashed potato into the casserole dish. Flatten down with the back of a spoon.
Sprinkle with remaining cheese.
Top with fried onion rings. Alternatively, top with tomatoes or breadcrumbs.
Bake on the top shelf of a preheated oven (220°C/ 200°C fan / Gas mark 7 / 425°F) for about 15 minutes.
Remove when the cheese has melted and turned golden ready to serve.