If you want an even cheesier result, use both Parmesan and mozzarella. Some other great options for the cheese sauce include sharp cheddar cheese, pepper jack cheese, or velveeta cheese.
Keep an eye on the casserole as it bakes. If the bread crumbs are getting too dark before the rest of the casserole is finished, tent with aluminum foil to prevent them from burning.
Instead of bread crumbs, you could also use crushed butter crackers (Ritz crackers are a popular option).
If you have leftovers, store in an airtight container in the fridge for 3 to 4 days.
For more flavor, add other seasonings like red pepper flakes, smoked paprika, Italian seasonings, cumin, cayenne pepper, or whatever you keep in your cabinets.
