Add paprika, tomatoes, and jalapeo; cook 2 minutes, stirring occasionally.
Add sherry; cover, reduce heat, and simmer 10 minutes.
Remove from heat; stir in bread.
Place bread mixture, bell pepper, remaining 1 teaspoon oil, almonds, and next 4 ingredients (through salt) in a food processor; process until smooth.
Prepare grill.
To prepare shellfish, combine parsley, 1 teaspoon oil, shrimp, and 1 garlic clove in a large zip-top plastic bag. Seal and refrigerate for 30 minutes. Thread 4 shrimp onto each of 6 (8-inch) skewers.
Place skewers on grill rack coated with cooking spray; grill 4 minutes on each side or until done.
Remove from grill.
Place clams and mussels directly onto grill rack; grill 10 minutes or until shells open. Discard any unopened shells.