Vegetarian Pizza

Ingredients
2 x 10 inch readymade pizza bases
1 can or jar of tomato sauce, enough to cover the pizza (about 2 cups)
1/2 tsp dried oregano
100 gm cheddar cheese, grated
1 onion, sliced
1 green pepper, sliced
1 red pepper, sliced
100 gm mushrooms, sliced

Method
Preheat the oven to 200C.
Cover the bases thinly with the sauce followed by the oregano and cheese.
Then place the slices of onion, peppers and mushrooms on top.
Bake for 10-15 minutes until the cheese has completely melted and starts to turn brown around the pizza's edge).