Preheat the oven to 230 degrees C. Prepare pizza base according to recipe or packet instructions. Place on a pizza pan.
Pour the liquid from the artichokes into a small frypan and bring to a boil over medium heat. Cook for 1 minute or until the liquid is almost gone. Add garlic and cook, stirring, for less than a minute. Add artichoke hearts, stir to coat with garlic flavour, then remove from heat and set aside.
Spread spaghetti sauce over the prepared pizza base. Sprinkle with cheese then place the artichoke hearts and garlic over the cheese. Arrange tomato slices evenly over the top.
Bake for 20 minutes in the preheated oven until crust is puffed and golden and cheese is melted.