See Grilled Pizza post for complete recipe of pie...
1 28 oz can San Marzano tomatoes, crushed
Fresh whole milk Mozzarella di Bufala, pressed and sliced 1/4" thick
3 or 4 cloves garlic, minced
Fresh Oregano, minced
Fresh Basil, torn
Heat olive oil in a large saucepan and add garlic. Sauté for one or two minutes and add tomatoes. Reduce heat to a medium-low and simmer for 30 minutes. Add some sea salt and some oregano and simmer for an additional 15 minutes. Allow to cool. Once your dough is prepared and your grill is hot, lightly brush with olive oil. Spread tomato sauce evenly over pie and place slices of cheese on top. Do not over crowd with cheese. Grill pizza and add fresh basil as soon as it comes off the fire and serve immediately.