Cook ground beef in large nonstick skillet over medium-high heat, stirring occasionally, until done.
Stir in sauce and chili powder. Bring to a boil over high heat. Reduce heat to low and simmer covered 10 minutes.
Stir in macaroni and heat through. Serve, if desired, with your favorite chili toppings.
Tip: For an extra hearty Chili Mac, stir in 2 cups of your favorite cooked veggies.