Rosa's Pizza gets a surprise from Ellen DeGeneres

"We're just a little pizza shop," said Mason Wartman as he appeared on "The Ellen DeGeneres Show" on Tuesday afternoon.

Wartman owns Rosa's Fresh Pizza at 25 S. 11th Street in Philadelphia, where pizza is $1 a slice and $8 for a whole pie.

But that's not all Rosa's is known for. Customers have the chance to pay it forward when they purchase their dollar slices; they can also donate an additional dollar to help feed the homeless and those in need. Post-it notes cover the walls inside the shop from patrons wishing those in need some words of encouragement.

Wartman told Ellen his shop feeds 30-40 people in need every day and hopes other companies like his will adopt the food-sharing program to help the Philadelphia community.

Always down to help out a good cause, Ellen presented Wartman with a $10,000 check from Shutterfly.

Last week Wartman teamed up with Rush Order Tees to sell T-shirts and sweatshirts to help clothe the homeless and those in need in Philadelphia. For every sweatshirt sold, Rosa's will donate one to those in need.

So, go ahead, get your $1 slice and help out the community while you're there.

You can check out Wartman's full interview here.