Place the chicken to the bottom of the slow cooker in an even layer. Sprinkle over the salt, pepper, garlic and onion powder.
Pour the barbecue sauce and chicken broth over the chicken. Stir gently around the chicken to combine the sauce.
Top with half the bacon.
Cover and cook on LOW for 4–6 hours or HIGH for 3–4 hours, until the chicken is tender and cooked through.
Remove the chicken from the slow cooker and shred it using two forks. Return the shredded chicken to the slow cooker and stir to coat in the sauce.
Add the refrigerated cheese tortellini directly into the slow cooker and gently stir to combine with the chicken and sauce.
Stir in the heavy cream.
Sprinkle in 1 cup shredded cheddar cheese and stir until melted and fully combined.
Cover and cook on HIGH for an additional 20–30 minutes, or until the tortellini is tender and heated through.
Stir gently, let sit for a few minutes to thicken.
Top with the remaining cheese and bacon.