Heat oven to 425 degrees F.
Set the flounder onto a lightly oiled baking sheet. Drizzle with oil and juice from half a lime, then sprinkle with paprika, garlic, salt and pepper.
Bake the flounder fillets for 8-10 minutes, or until they are cooked through. They will be nice and flaky.
While the flounder is cooking, make the salsa criolla. Add the bell pepper, onion, tomato and garlic to a large bowl.
In a separate bowl, whisk together the oil and vinegar. Pour it into the first bowl and toss to coat everything.
Add the crushed red pepper, oregano and salt and pepper to your preference.
Give it a good stir and serve it over the baked flounder fillets.