This Cheesy Crock Pot Tortellini recipe is the perfect comfort food to warm you up on a chilly night. With a savory combination of ground beef, tangy tomatoes, and gooey mozzarella cheese, this slow cooker dinner is both easy to make AND delicious!
In a large skillet over medium-high heat. Add ground beef, garlic, and onions. Cook until no pink remains. Drain fat and add to a 6-quart slow cooker.
Add tortellini, pasta sauce, diced tomatoes, pepper flakes, Italian seasoning, black pepper, and 1½ cups of mozzarella cheese. Mix until well combined.
Cover and cook on low for 3-4 hours. Sprinkle the remaining cheese over the top, cover, and cook for 10 minutes.