Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 375°F (190°C) and butter the casserole dish.
- Peel and slice the sweet onions into ½ inch rings, arranging them in a single layer.
- Season the onions with salt, pepper, and Italian seasoning, then dot with butter.
- Layer shredded mozzarella cheese over the onions, then add provolone, and finish with Parmesan.
- Bake uncovered for 25-30 minutes until bubbling and golden brown; broil for an extra 2 minutes if desired.
- Let cool for about 5 minutes before serving.
Nutrition
Notes
Slice onions thick for best results; various cheese options can enhance flavor. Can be made ahead and refrigerated before baking.
