I've used tomato paste in lieu of tomatos before - BUT - it's a tiny amount of paste (~1.2oz) that is equivalent to 1 cup chopped tomato, so next time I think I will just chop & drain when I feel that tomato need. Remember tomatoes are a 'Occasional' veggie at only 2x/week.
http://contadina.com/products/paste-...utrition-facts
In a 6-oz can of tomato paste:
Serving Size 33g, Servings Per Container 5
<-THIS IS THE SERVING SIZE KICKER
Calories 30
Fat: 0
Carbohydrates: 6g
Fiber: 1g
Sugars: 3g
Protein: 2g
In 1 cup chopped tomato:
Calories: 27
Fat: 0
Total Carbs: 6g
Dietary Fiber: 2g
Sugar: 4g
Protein: 1g