Repeat the layers—tortillas, beef, sauce, cheese—two more times, ending with a generous layer of cheese on top. Don’t worry if it’s not perfect; it all melds together as it cooks.
Cover the slow cooker with the lid and cook on LOW for 3–4 hours or on HIGH for about 2 hours, until everything is hot and bubbly and the cheese has melted nicely.
Turn off the slow cooker and let the enchilada stack rest, covered, for about 10–15 minutes so it can set up a bit. Then cut into wedges or scoop out with a large spoon. Serve warm, with any favorite toppings on the side if you like (sour cream, sliced green onion, or a bit of chopped tomato).
Variations & Tips
Over the years, I’ve found this little recipe to be wonderfully forgiving, just like the best church potluck casseroles. If you’d like to stretch it further, you can stir a can of drained black beans or pinto beans into the cooked beef without really changing the spirit of the dish. For a milder flavor, choose a mild enchilada sauce and a Colby Jack cheese; for a bit more kick, use medium or hot sauce and add a pinch of chili powder or cumin to the beef as it browns.
Corn tortillas give it that rustic, toasty flavor I love, but if your family prefers flour tortillas, they’ll work in a pinch—just know the texture will be a little softer. You can also swap half the beef for cooked shredded chicken or leftover roast to use what you have on hand.
If you’re cooking for two, assemble the stack in a smaller slow cooker or halve the recipe and line the crock with parchment for easier lifting and slicing. And like many good casseroles, this reheats beautifully; the flavors seem to cozy up to each other even more by the next day, making it perfect for easy lunches or a quick second supper.
