For an extra layer of flavor, consider adding a sprinkle of grated Parmesan cheese along with the Cheddar and mozzarella. Squeezing the thawed spinach dry is crucial to prevent a watery casserole. Feel free to substitute different cheeses to your liking. Provolone, Monterey Jack, or a blend of Italian cheeses would all work well. If you want to add some protein, cooked ground beef, Italian sausage, or diced ham would be a great addition. This casserole can be assembled ahead of time and stored in the refrigerator for up to 24 hours before baking. Add 10-15 minutes to the baking time if baking from cold.
Jace Kemmer
Jun 5, 2025This casserole is a hit every time I make it! My family loves it, and it's so easy to throw together.
Karley Weissnat
Mar 16, 2024I added some Italian sausage to the recipe, and it was even better!
Vicenta Kshlerin
Nov 17, 2023The tip about squeezing the spinach dry is a lifesaver! No more watery casserole.
Bianka Marquardt
Mar 14, 2023I love how versatile this recipe is. I've used different cheeses and added different veggies, and it always turns out great.