Step 1: Cook or pasta in salted boiling water for about 8-10 minutes.
Step 2: as the pasta is cooking, chop your salmon, tomatoes and wash the spinach.
Step 3: drain the pasta and add in the yogurt (how much you put in depends on how saucy you want it).Tomatoes, salmon, spinach and the juice of the lemon.
Step 4: mix it all up until the spinach has wilted a bit.
Step 5: top with some parmesan if you want and enjoy!