In a large skillet over medium heat, add the ground beef and cook until browned, breaking it up with a spatula. Drain excess fat if necessary.
Add the diced onion and minced garlic to the skillet, cooking for about 3-4 minutes until the onion is soft.
Stir in the enchilada sauce, ground cumin, chili powder, salt, and pepper. Let it simmer for about 5 minutes.
Meanwhile, cook the cheese tortellini according to package instructions. Drain and set aside.
Once the beef mixture has simmered, gently fold in the cooked tortellini and ½ cup of the shredded cheddar cheese until well combined.
Reduce the heat to low and sprinkle the remaining cheese on top. Cover the skillet with a lid and let it sit for about 2-3 minutes or until the cheese is melted and bubbly.
Remove from heat and sprinkle fresh cilantro on top for garnish.