Preheat oven to 500 F (260 C). Chop the tomato removing the seed and watery part. Place the tomatoes in a small bowl.
Add oregano and garlic.
Add olive oil and toss.
Spread evenly the tomato mix on the pizza dough.
Bake the pizza for approximately 20 - 25 minutes. Lift one side to check for readiness. Pizza is ready when the bottom surface is light golden brown.