Slow Cooker Pizza Pasta

INGREDIENTS:
1 1/2 pounds ground beef
1 (8 ounce) package rigatoni pasta
1 (16 ounce) package shredded mozzarella cheese
1 (10.75 ounce) can condensed cream of tomato soup
2 (14 ounce) jars pizza sauce
1 (8 ounce) package sliced pepperoni sausage

DIRECTIONS:
Bring a large pot of lightly salted water to a boil.
Add pasta and cook for 8 to 10 minutes or until al dente; drain and set aside.
Brown the ground beef in a skillet over medium-high heat.
Drain off grease.
In slow cooker, alternate layers of ground beef, noodles, cheese, soup, sauce and pepperoni.
Cook on Low setting for 4 hours.