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Dinner · Part 2 of 3: Instructions

Cheesy Beef Tortilla Casserole Pie Step-by-step instructions

A golden baked tortilla casserole pie in a cast iron pan with a slice being lifted to show a massive cheese pull.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before you begin, ensure all your vegetables are diced uniformly to ensure even cooking. Have your spices measured and ready to go in a small bowl, and shred your cheese if you are using blocks. Preheat your oven early so it is ready for the baking phase.

Prepare your workspace by clearing enough room for your pan and ingredients, and keep your oven mitts nearby for the transition from the stovetop to the oven. Having everything prepped in advance makes the cooking process smooth and stress-free.

Ingredients at a glance (14)
  • 1 lb ground beef
  • 1 onion, diced
  • 2 bell peppers, diced
  • 2 tsp minced garlic
  • 2 tbsp tomato paste
  • 1 tsp cumin
  • 1 tsp smoked paprika
  • 3/4 tsp salt
  • 1/2 tsp black pepper
  • 8 flour tortillas
  • 3 cups shredded mozzarella cheese
  • 3 tbsp melted butter
  • 1 tbsp fresh parsley, chopped
  • 1 cup shredded cheddar cheese

Instructions

Searing the filling

  1. Prepare the beef filling
    Heat a skillet over medium-high heat. Add the ground beef and cook until browned, breaking it up with a spatula. Add the diced onion and bell peppers, cooking until the vegetables are soft. Stir in the minced garlic, tomato paste, cumin, smoked paprika, salt, and black pepper. Continue to cook until the mixture is rich, thick, and fully browned, ensuring it reaches an internal temperature of 160°F (71°C). Remove from heat.
    Look for The beef is fully browned and the vegetables are tender.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Do not rush the browning process as this develops the deep flavor base of the casserole.

The beef should be deeply browned with no pink remaining, and the vegetables should be tender. The mixture should appear rich and thick, not watery, indicating that the flavors have concentrated properly. Ensure the spices are well-incorporated and the meat has reached the safe internal temperature before proceeding to the assembly stage.

Assembling the pie

  1. Assemble the tortilla pie
    Preheat your oven to 380°F (193°C). Take a round cast iron pan and overlap the flour tortillas around the base and up the sides to create a crust. Spread the seasoned beef mixture evenly over the bottom layer of tortillas. Add a generous layer of shredded mozzarella cheese on top of the beef. Fold the overhanging edges of the tortillas toward the center to seal the pie.
    Look for The pan is lined, the filling is spread, and the edges are neatly folded inward.
    Tip Ensure the tortillas are overlapping enough to prevent the filling from leaking out during the bake.

The tortillas should form a secure, overlapping base that covers the bottom and sides of the pan. The beef filling should be distributed evenly to ensure every slice has the same amount of flavor, and the cheese should be spread generously to create a solid top layer.

Double-check that the edges are folded in securely to prevent any filling from leaking during the bake.

Baking until golden

  1. Bake and finish
    In a small bowl, mix the melted butter with the chopped fresh parsley. Brush the top of the folded tortillas with the garlic parsley butter. Sprinkle the remaining mozzarella and the cheddar cheese over the top. Place the pan in the preheated oven and bake at 380°F (193°C) for 20 minutes until the cheese is bubbling and the top is golden brown. Let the pie rest for 5 minutes before slicing and serving.
    Look for The cheese is melted, bubbling, and the top is golden brown.
    Tip Letting the pie rest is crucial for clean slices and the perfect cheese pull.

The pie is ready when the top is beautifully golden brown and the cheese is bubbling across the entire surface. The garlic butter should have imparted a fragrant aroma to the kitchen, and the tortillas should appear crisp. Ensure the pan is handled carefully, as it will be very hot when coming out of the oven.

Common mistakes

A common mistake is overcrowding the pan with too many ingredients, which can prevent the beef from browning properly. Always cook the beef until it is well-browned and the moisture has evaporated, as a watery filling will make the tortillas soggy.

Additionally, avoid skipping the resting period after baking; cutting into the pie too early will cause the molten cheese and filling to spill out, resulting in a messy presentation and making it difficult to lift a solid slice.

How to tell it’s done

The casserole is done when the top is golden brown and the cheese is bubbling throughout. The internal temperature of the beef filling should have reached 160°F (71°C) during the initial cooking phase.

Once removed from the oven, allow it to rest for at least 5 minutes. This rest period is essential to help the layers set, making it easier to cut into clean, thick wedges without the filling falling apart on the plate.

  • Ground meat: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can this pie be made ahead of time?
  • Why is the bottom of the tortilla soggy?
  • Can a different type of cheese be used?

Also in Part 3: variations (Spicy Jalapeno Twist, Vegetarian Black Bean), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)