- Preheat your oven to 350°F (175°C).
- Coat a 9×13-inch baking dish with non-stick cooking spray.
- Clean and peel the Vidalia sweet onions. Slice them into rounds approximately ¼ inch thick do not separate the rounds into individual onion rings.
- Spread the onion evenly across the base of the prepared baking dish.
- Season the onion rings with salt, garlic powder, and oregano.
- Cut the butter into roughly eight even portions or pats. Distribute these butter pats evenly across the seasoned onion rings in the baking dish.
- Sprinkle the Italian blend cheese and cheddar cheese evenly over the onion rings. Finish with a final topping of shredded Parmesan cheese.
- Place the baking dish into the preheated oven. Bake for 35-40 minutes until the cheese is browned and bubbling.
- For optimal taste, serve the dish promptly while it remains warm
NOTE:
- Italian blend cheese is a cheese that contains a mixture of two or more types of cheese. A traditional
- Italian cheese blend often includes a mix of Mozzarella, Parmesan, Romano, Asiago, and Provolone.
