The base of this is delicious as a side dish, or with just some cheese on top too. I make this with out the onion for fussy kids. You could also add grated cauliflower and cheese to the base, or egg to help bind it.
Makes a large pizza or several smaller ones
Couple of large-ish potatoes, peeled and grated
1 onion, grated
tomato puree (or pizza sauce of your choice)
pizza toppings and cheese
Squeeze some of the water out of the potato in a clean tea towel. Mix in the onion and season. Form the potato mixture into a pizza shape - taking care it isn't too thick or it won't cook through - on a greased baking tray. Cook at about 350oF for about 20 minutes. Then add the toppings as you would for any other pizza and return to the oven until the cheese is browned.