Easy Baked Fish Pastry Rolls with Fresh Veggies

Ingredients

• 2 cups (250g) all-purpose flour
• 1/2 teaspoon salt
• 1/2 cup (115g) unsalted butter, cold and cubed
• 1/4 cup (60ml) ice water
• 1 pound (450g) white fish (like cod or tilapia), skinless and boneless
• 1 cup (150g) mixed seasonal vegetables (e.g., bell peppers, zucchini, and spinach)
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1 tablespoon olive oil
• 1 teaspoon dried dill or parsley
• Salt and pepper, to taste
• 1 large egg (for egg wash)