01 -
3 sweet onions, sliced 1/4-inch thick.
02 -
1 1/2 teaspoons Cajun seasoning.
03 -
1 teaspoon garlic powder.
04 -
4 tablespoons butter, cut into 6 slices.
05 -
1 cup shredded Cheddar cheese.
06 -
1 cup shredded mozzarella cheese.
07 -
1/2 teaspoon dried oregano.
08 -
1/2 cup grated Parmesan cheese.