This recipe is one of my new essentials. It has less sugar, salt, and fat than store-bought spaghetti or pizza sauce, and it tastes much fresher and more tomato-ey. Which I love. (I was attempting to recreate Giordano's sauce, and I didn't quite succeed, but it's much closer than Prego or Ragu.) Plus, it's cheaper, since I stock up on the Great Value brand tomatoes.
Pasta (or Pizza) Sauce
1 can (14 oz?--regular size) Italian style diced tomatoes (the kind with basil, oregano, and garlic)
1 tsp. sugar
1 tsp. salt
1 tsp. oregano
1 tsp. basil
1 tsp. minced garlic (which I get from a bottle for this recipe, but you could mince your own. Maybe 1 clove?)
Toss everything in the blender and blend away. I use it just like this, most of the time, but you can also cook it in a flat saucepan (heat 1 tbsp. of olive oil in the pan first) until it thickens a little. That makes the tomato flavor more rich and less fresh.
This is the best sauce for a margherita-style pizza when it's winter and the fresh tomatoes are not-so-fresh and from somewhere like Chile. :)