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!
– 1 lb ground beef – 2 tsp garlic minced – ¾ cup onion (diced) – 19 oz frozen tortellini – 1 (19 oz) jar pasta sauce – 1 (14.5 oz) can diced tomatoes – ¼ tsp red pepper flakes – 1 tsp Italian seasoning – 1 tsp black pepper – 3 cups mozzarella cheese (divided)