A frittata is a kind of baked omelette, or a pie without a pastry case. You can put all sorts of things in them.
1 Finn and Harper cut 4 medium peeled potatoes into chunks.
2 They sliced 2 red peppers into strips.
3 They cut 4 big mushrooms into pieces and sliced 2 spring onions.
4 The potatoes were roasted in the oven until just cooked.