Can I use a different cheese instead of panela?
Yes. Oaxaca, mozzarella, or queso fresco work as substitutes, though panela's mild flavor and high melting point are ideal. Oaxaca will be creamier; fresco will stay firmer.
How do I know when the poblano peppers are fully roasted?
Roast them over direct flame or under a broiler until the skin is blackened and blistered all over (3–5 minutes per side). The pepper should yield slightly to pressure. Wrap in plastic to steam for easier peeling.
Can I make rajas con queso ahead of time?
Yes. Prepare the salsa and roasted peppers up to 2 days ahead. Add the cheese and warm gently just before serving to prevent it from becoming tough or rubbery.
What's the best way to serve rajas con queso?
Serve warm as a side dish, in warm tortillas, over rice, or as a vegetarian main. Garnish with fresh cilantro and serve with warm flour or corn tortillas.
Can I make this dish spicier?
Add extra jalapeños to the salsa or include 1–2 serranos. Roast them first to mellow the heat slightly, or add raw for maximum spice.