Heat the olive oil in a large skillet over medium heat until it shimmers.

Add the diced onion to the skillet and sauté for about 5 minutes until it turns translucent.

Stir in the minced garlic and cook for an additional minute until fragrant.

Add the roasted red peppers, vegetable broth, smoked paprika, and dried oregano. Season with salt and pepper. Simmer for about 10 minutes.

Use an immersion blender to blend the sauce until smooth.

Carefully place the cod fillets in the skillet, cover with the sauce, and cook over medium-low heat for 8 to 10 minutes.

Once cooked, sprinkle with chopped parsley and serve warm.