Preheat oven to 375°F (190°C). Slice the tops off the bread rolls and hollow them out, leaving thick sides. Brush with olive oil and sprinkle with garlic powder. Bake for 10–12 minutes until golden and crisp.
In a large pot, melt butter over medium heat. Add onion and garlic and cook until softened.
Stir in flour and cook for 1 minute to form a roux.
Slowly whisk in seafood stock, heavy cream, and the extra stock with lemon juice. Simmer for 5 minutes until slightly thickened.
Add Old Bay seasoning, smoked paprika, cayenne (if using), salt, and pepper.
Gently add shrimp, crab, and scallops. Cook for 4–5 minutes until just tender.
Stir in parsley and remove from heat.
Ladle the Stuffed Seafood Soup Bread Bowl filling into the prepared bread bowls and serve warm.