Preheat oven to 350 F.
Cut the top off your garlic head so that the cloves are all exposed, and spray with a light coat of olive oil to prevent burning.
Clean your tomatoes as usual and cut in half.
Spray a cookie sheet with a light coat of olive oil and place the garlic and tomatoes on the tray.
Bake for about 30-45 minutes or until the garlic heads start to pop out of the head.
Remove from oven and allow to cool slightly.
Transfer to a food processor, add all other ingredients and blend until smooth.
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.