Notes
- Grease the casserole dish for easier cleanup.
- Feel free to substitute marinara for the spaghetti sauce.
- You can substitute ground sausage, Italian sausage, or ground turkey for the ground beef.
- The cheese mixture can be mixed with a spoon, but a handheld mixer makes it faster, easier, and creamier.
- Try adding other spices and herbs like garlic powder, onion powder, red pepper flakes, oregano, and thyme.
- If you prefer more vegetables, add tomatoes, sautéed spinach, or mushrooms.
- Let the casserole sit for 15 minutes after removing it from the oven to make it easier to cut into slices.
- This casserole sits high in a 9×13 dish, so be careful covering it with aluminum foil to keep it warm. Make a tent to keep from peeling off the top layer of cheese.
- Store leftovers in an airtight container in the fridge for up to three days. Reheat in the microwave at reduced power until warm.
- To freeze, wrap the casserole with several layers of plastic wrap and freeze for up to two months. Defrost in the fridge overnight.
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