Can I make the birria ahead of time?
Yes. Pressure-cook the chuck roast with the chile-tomato mixture up to 2 days ahead, refrigerate, then shred and assemble the lasagna when ready to bake.
What type of chiles should I use?
The recipe calls for ancho and guajillo chiles, which provide a mild-to-medium heat and rich, fruity depth. Avoid substituting with very hot varieties unless you prefer extra spice.
Do I need to make fresh pasta sheets?
The recipe specifies homemade pasta sheets. You can use dried lasagna noodles as a shortcut, but fresh sheets will better absorb the birria flavors and sauce.
How do I know when the lasagna is done baking?
Bake until the top is golden brown and bubbly around the edges, typically 35–45 minutes at 375°F. The béchamel should be set but still creamy underneath.
Can I freeze this lasagna?
Yes. Assemble unbaked, wrap tightly in plastic wrap and foil, and freeze up to 3 months. Bake from frozen, adding 15–20 minutes to the standard bake time.