Italian Sausage and Radiatore Pasta

For the pasta:
In a medium size pot, add hot water and salt. Heat pot on medium heat and bring to a boil. Add pasta and stir. Cook until al dente, about 6 to 7 minutes. Drain and set aside.

For the sauce:
While pasta is cooking, chop onions, garlic and parsley. Set aside.

In a large shallow pot or sauté pan (with high sides), add sausage. If sausage is in a casing, make a small cut on one of the ends, squeeze the meat out, and discard the casing. Stir sausage as it cooks. When the sausage starts to brown, add onions and garlic. Add olive oil and stir. Continue to stir while cooking for about 3 minutes or until onions start to turn translucent.

In a small bowl, add canned diced tomatoes. With clean hands, squeeze tomatoes so there are no big chunks, and add to the pan. Add tomato sauce. Fill the empty tomato sauce can with water and add the water to the pan. Stir. Add parsley, oregano, red pepper flakes, salt, and pepper. Stir.

Turn heat down to low and let sauce simmer uncovered for about 15 minutes, stirring occasionally. Add pasta to the sauce. Gently stir the pasta into the sauce. Serve while hot, topped with grated Parmesan cheese and parsley.