Tomato powder is made from dehydrated tomatoes, which are ground to powder. The taste of tomato powder is that of concentrated tomatoes. It has all the sweetness and acidity of tomatoes concentrated into a powder form..Tomato powder is an excellent source of vitamin A and a good source vitamin C and B vitamins. From 100 g of tomato powder, you get 345 percent of your daily vitamin A and 12 percent of your vitamin C..When it comes to the B vitamins, you get 45 percent of your riboflavin requirement per day and 46 percent of your niacin..Tomato powder also has a lot of fiber. A 100 g serving gives you 66 percent of the fiber you need to take in each day..You can reconstitute tomato powder with water to get a very good approximation of tomato paste. Use it to make pizza sauce, pasta sauce, or in any other application that would call for tomato paste or sauce. Use it in your pasta recipe to give the noodles a red hue.