Heat oil, add fideo and cook until lightly browned. Add onion and cook until tender. Add garlic, tomato sauce and water and season to taste with salt and pepper. Bring to a boil. Lower heat, cover and simmer for 10 minutes.
Thats the plain version...we always added ground beef to ours....we would fry it on the side...then add the cook, drained beef when you add the garlic etc.