Tomatoes of all varieties work. Preferably with the flavor you like.
I like a strong tomato flavor with a good amount of sweetness. So I like using both sun dried tomatoes and fresh heirlooms AND cherry tomatoes.
Just using the tomatoes and the sesame can work for me.
However there are a variety of good additions:
- bell peppers
- bit of spicy peppers
- bit of basil
- teeny bit of something sweet
Also to make the spaghetti/pasta I prefer cucumber, but zucchini works fine and I like mixing the two.