Can I make this corn casserole ahead of time?
Yes. Assemble the casserole up to 24 hours ahead, cover, and refrigerate. Add 5–10 minutes to bake time when cooking from cold.
How do I adjust the heat level?
Reduce or omit the jalapeño and cayenne for mild heat, or add a second jalapeño and increase cayenne to 1/2 tsp for extra spice.
Can I use frozen corn instead of canned?
Yes. Thaw and drain frozen corn, or use it directly if your recipe liquid accounts for the extra moisture.
What's the best way to reheat leftovers?
Cover with foil and warm in a 350°F oven for 15–20 minutes until heated through. Alternatively, microwave individual portions for 1–2 minutes.
How do I keep the panko topping crispy?
Add the panko-parmesan mixture in the last 10–15 minutes of baking so it crisps without absorbing too much moisture.