Authentic Taco Casserole

Authentic taco casserole layers seasoned ground beef, crispy tortilla strips, and cheese into a baked dish that tastes like tacos but comes together in one pan. The key is cooking the beef and draining it well, so the casserole bakes firm and sliceable instead of turning soupy.

Ingredients for Authentic Taco Casserole

Ground beef is the protein base that browns and seasons the whole dish. Onion and garlic add depth to the beef. Taco seasoning brings the signature flavor. Corn tortillas soften as they bake and hold the layers together. Cheddar cheese melts over the top and into the layers. Diced tomatoes and their juice add moisture and tang. Black beans provide substance and earthiness. Corn brings sweetness and texture. Jalapeño peppers add heat. Sour cream mixed into the beef creates a creamy filling. Beef broth moistens the casserole so the tortillas soften without it becoming wet and falling apart. Salt and black pepper balance the seasoning.

Why This Authentic Taco Casserole Works

The ground beef is browned thoroughly and drained before mixing with sour cream and broth. This step removes excess fat and liquid, so the casserole stays firm when it bakes instead of becoming greasy or mushy. The beef mixture is also the wettest layer in the casserole, and it sits in the middle where it can soften the tortillas without making the top and bottom soggy.

Corn tortillas absorb liquid as the casserole bakes, becoming tender and almost creamy rather than crispy or tough. They are layered raw with the filling, so they cook at the same time everything else does. If you tried to use them crispy (fried), they would shatter when you cut the casserole and would not hold the layers together.

The casserole bakes covered for most of the time, which keeps the cheese from browning too much and lets the tortillas soften. Uncovering it at the end lets the top cheese brown slightly and the casserole set so it slices cleanly instead of falling apart.

Mistakes To Avoid

Skipping the step of draining the beef leaves excess fat in the casserole, which pools at the bottom and makes the whole dish greasy and heavy. The layers will also slide apart when you cut into it because fat does not bind the way a thickened sauce does.

Using crispy fried tortillas instead of soft corn tortillas will make the casserole difficult to cut and eat. The crispy pieces will shatter under the knife and separate from the layers instead of holding the casserole together.

Not covering the casserole while it bakes causes the cheese to brown too dark and the top to dry out before the tortillas inside have time to soften. The exposed edges will also brown and crisp up before the center is warm all the way through.

Cutting into the casserole before it has rested causes the layers to slide and collapse on the plate. The casserole needs time to set after baking so the layers bond and hold their shape when you lift a piece out.

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Ingredients

• 2 pounds ground beef
• 1 medium onion, diced
• 4 cloves garlic, minced
• 3 tablespoons taco seasoning
• 1/2 cup beef broth
• 1/2 cup sour cream
• 12 corn tortillas
• 2 cups shredded cheddar cheese
• 1 can (14.5 ounces) diced tomatoes with green chilies, with juice
• 1 can (15 ounces) black beans, drained and rinsed
• 1 cup corn, fresh or frozen
• 2 jalapeño peppers, seeded and diced
• Salt and black pepper to taste

Step-by-step Instructions

1. Heat a large skillet over medium-high heat, add the ground beef and onion, and cook for 8 to 10 minutes, breaking the beef into small pieces with a spoon, until no pink remains and the onion is soft.
2. Add the garlic and taco seasoning, stir, and cook for 1 minute until fragrant.
3. Pour the cooked beef into a colander and let it drain for 1 to 2 minutes, pressing gently with a spoon to remove excess fat. Return the beef to the skillet.
4. Stir the beef broth and sour cream into the beef until combined, then stir in the tomatoes with juice, black beans, corn, and jalapeños. Taste and add salt and pepper as needed.
5. Preheat the oven to 350°F (175°C).
6. Spread a thin layer of the beef mixture on the bottom of a 9 by 13 inch baking pan, then layer 4 tortillas over it, breaking them to fit. Repeat with another layer of beef mixture and 4 more tortillas, then top with the remaining beef mixture and the final 4 tortillas, breaking as needed.
7. Sprinkle the cheddar cheese evenly over the top.
8. Cover the pan with foil and bake for 20 minutes.
9. Remove the foil and bake for 10 to 15 minutes more, until the cheese is melted and the casserole bubbles at the edges and reaches 165°F (74°C) in the center when checked with an instant-read thermometer.
10. Remove from the oven and let rest for 10 minutes before cutting and serving.