In a large skillet, brown ground beef and sausage over medium-high heat. Drain.
Add onion and bell pepper and saute for about 2 minutes, stirring frequently.
Spray a 6-quart slow cooker with cooking spray. Place ground beef mixture into slow cooker. Add remaining ingredients (except for tortellini and cheese) and stir to combine.
Cook on low for 7–8 hours. Stir in tortellini and sprinkle with cheese. Cook on low for 15 more minutes.
Recipe by Simple, Sweet & Savory at https://www.simplesweetsavory.com/slow-cooker-cheesy-tortellini/