Preheat oven to 400F and spray two 13 x 9 inch casserole pans with nonstick cooking spray. In a large skillet over medium-high heat, combine ground beef and onion.

Let cook, stirring occasionally, until meat is fully cooked and onions are tender.

Strain away any excess grease and add in minced garlic, ground cumin, salt, and black pepper.

Add green chiles and refried beans and stir until combined. Remove skillet from heat.

In a medium saucepan over medium heat, combine tomato sauce, chili, and enchilada sauce and whisk to combine.

Let cook for 4-5 minutes, until heated through, and remove from heat.

Divide the meat mixture evenly among the tortillas and top with 1/3 cup lettuce and 1/3 cup cheese on each tortilla. Fold the tortillas burrito-style and lay in the prepared casserole pans (3 in each). Pour the tomato sauce mixture evenly over the burritos.

Sprinkle with 3/4 cup shredded cheese and bake for 20 minutes.

Top with chopped green onions and any other desired toppings.