Pre-cook meat and add onion and bell pepper mix until softened.
Place meat and vegetable mix in a large bowl. Add large can of enchilada sauce. Stir to mix well.
Place 1-2 ladles of sauce mix in bottom of large slow cooker. Place a layer of corn tortillas on top of that to evenly cover.
Layer sauce and cheese on top of the tortillas. Keep layering until you have filled your slow cooker. Top with a final layer of corn tortillas, top with cheese, then cover with entire small can of enchilada sauce.
Cover and cook on low about 4 hours (until heated through).