Cut the ham, tomato, and onion into bite-sized pieces.
Boil the pasta noodles in boiling water until cooked.
Heat olive oil in a pan and sauté the ham until golden.
Add the onion and tomato, and stir-fry together.
Add the cooked pasta noodles to the pan.
Pour in the tomato sauce and mix well.
Season with salt and pepper to taste.
Transfer to a plate and finish with a sprinkle of Parmesan cheese.