Tennessee Onions Cheesy Baked Onions

Tennessee Onions (Cheesy Baked Onions)
 Ingredients
3–4 large sweet onions (like Vidalia), sliced into rings
3 tablespoons butter, cut into small pieces
1 cup shredded cheddar cheese
1 cup shredded mozzarella cheese
½ cup grated Parmesan cheese
1 teaspoon garlic powder
Salt and black pepper, to taste
 Instructions

1. Prep the Oven
   Preheat oven to 350°F (175°C).
   Lightly grease a baking dish.
2. Layer the Onions
   Separate onion slices into rings.
   Spread them evenly in the baking dish.
3. Season
   Sprinkle with salt, pepper, and garlic powder.
4. Add Butter
   Dot the onions with small pieces of butter.
5. Add Cheese
   Sprinkle cheddar, mozzarella, and Parmesan evenly over the top.
6. Bake
   Cover with foil and bake for 30 minutes.
   Remove foil and bake another 10–15 minutes, until cheese is melted, bubbly, and slightly golden.
    Tips for Best Results
   Use sweet onions for the best flavor (they get soft and slightly caramelized).
   Add a pinch of paprika or cayenne for a little kick.
   Let it rest for 5 minutes before serving—it thickens slightly.