01 -
In a large skillet over medium heat, cook ground beef and diced onion for approximately 8 minutes, breaking the meat into small pieces until fully browned. Drain excess fat, return to heat, then stir in taco seasoning and refried beans. Cook, stirring frequently, until heated through, about 3 minutes.
02 -
In a separate bowl, combine undiluted cream of mushroom soup with sour cream. Stir thoroughly until smooth and uniform in texture.
03 -
Spread half of the cream sauce evenly across the bottom of a 23x33 cm baking dish. Arrange a layer of flour tortillas over the sauce, overlapping and tearing as necessary to cover the surface completely. Evenly distribute half of the meat and bean mixture over the tortillas, then sprinkle approximately 140 grams of shredded cheese on top.
04 -
Repeat the layering with the remaining tortillas and meat mixture, finishing with the remaining cheese on top. Place the dish in a preheated oven at 175°C (350°F) uncovered and bake for 20 minutes, or until cheese is fully melted, bubbly, and lightly golden.