Place a pre made pizza base on a pizza tray. Spread sauce over the pizza base then add the anchovies and pepperoni. Top with half of the cheese then sprinkle on the onion, capsicum and garlic. Add remaining cheese. Bake in preheated oven until done, about 20-30 minutes.
You can use bought pizza dough or you can make your own; if using home made dough, perforate the dough with a fork then bake according to your recipes instructions. If using bought dough, bake according to the directions on the packet.