Cook the pasta until al dente according to the instructions on the packet.
In the meantime, dice 2-3 tomatoes, chop the chives and basil. Dice the mozzarella (can also be omitted). Put all ingredients in a large bowl.
Process 1 cup of low-fat yogurt, 1 - 2 tablespoons of lemon juice (preferably freshly squeezed), salt, cayenne pepper and paprika powder to make a sauce.
Now mix everything - including the pasta - and eat it warm (the salad tastes best freshly prepared and half warm).
Note: Alternatively, it also tastes good with 2-3 spring onions and less chives - normal onions are a little too intense.