The Pioneer Woman - Rigatoni and Beefy Tomato Sauce

When I saw this recipe, I know my hubby and Wonderboy would love it, so I decided this had to be on the menu right away.
below are the ingredients:
Chop up the onion and garlic:
Heat olive oil in the pan:
And add the onion and garlic...I love that smell!
Add the ground beef and brown it:

Add the tomatoes:
Cover and simmer for 30 minutes:
Remove the lid and cook for an additional 30 minutes:
Serve it with the pasta, Rigatoni in this case, and some freshly grated parmesan:
Very, very good.
Note, without the parmesan this is a non-dairy dish.