1. Cook pasta according to packet instructions.
2. Cut/chop carrots, celeries, tomatoes, potatoes and onion.
3. Bring water to boil.
4. Pour 1 big can / 2 small cans tomato sauce into boiling water.
5. Add a pinch of oregano, salt and black pepper. Mix well and let it boil.
6. Add chopped vegetables except tomatoes.
7. Add shrimp.
8. Add pasta.
9. Add chopped tomatoes.
10. Bring to boil.
11. Serve hot with lime and chili powder.
