First, preheat the oven to 425°F with the rack in the middle position.
Next, quarter the orange and squeeze out the juice with a juicer into a measuring cup. You should get about 1/3 cup of juice.
Then, add the corn oil, orange zest and Cayenne pepper to the orange juice. Stir it until it's well combined.
Store cooked Spicy Orange Flounder Sheet Pan Dinner in the refrigerator for up to three days. Freeze it cooked in a plastic container for up to 6 months or in a plastic freezer bag uncooked and prepped to use for meal planning for up to six months.
Use Cod, Tilapia or Orange Roughy instead of flounder fillets.
Use frozen broccoli florets and/or frozen flounder fillets but, increase the cooking time by 10 minutes or so. Still bake at 425F.