Place 1/2 cup sauce in the bottom of the slow cooker and spread it out.
Place 3 tortillas on top of the sauce. Add 1/3 the beans and 1/3 the cooked meat on top of the tortillas.
Add three more tortillas, spread sauce on top of the tortillas. Add 1/3 the beans and meat again.
Layer another three tortillas on top and spread 1/2 cup of sauce over them. Add the rest of the beans and meat.
Top with the remaining 3 tortillas and spread the sauce on top. Sprinkle with cheese.
Place the lid on the slow cooker and cook for about 4-6 hours on low or until the enchiladas are heated through. Check at about 3 hours in case your slow cooker, cooks faster than mine.