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Combine the olive oil and garlic in a saucepan. Stir in the tomatoes, and simmer until the sauce thickens. Remove the sauce from the heat and set aside.
Mix 2 tablespoons (30 ml) of olive oil with 2 cloves of garlic that's been minced in a small saucepan. Heat the mixture over medium heat until the garlic starts to sizzle, which should take approximately 3 to 5 minutes. You can add half a small onion that's been diced to the pan for extra flavor in the sauce. Once the garlic has started to sizzle, add a 28-ounce (794 g) can of crushed tomatoes. Mix until the ingredients are well combined, and then allow the sauce to simmer until it becomes thick, which should take approximately 15 minutes.  Stir the sauce occasionally while it's simmering to ensure that it cooks evenly and doesn't scorch the bottom of the pan. If desired, you can mix dried oregano, dried basil, crushed red pepper flakes, salt, and pepper into the sauce before you simmer it. Add the herbs and seasoning to taste. Because crushed tomatoes don't usually come in smaller cans, this recipe is going to make more sauce that you need for a single pizza. If you're only making one pizza, freeze the leftover sauce in an airtight container for the next time. When the sauce has thickened, remove the saucepan from the heat. Set it aside to allow the sauce to cool -- you don't want it to be hot when you start assembling the pizza. If you're short on time, you don't have to make the sauce for the pizza. Instead, use your favorite jarred pizza sauce or tomato-based pasta sauce.