How to Bake Fish Pastry Rolls with Fresh Veggies

Ingredients

• 2 cups (250g) all-purpose flour
• 1/2 cup (113g) unsalted butter, chilled and cubed
• 1/2 teaspoon salt
• 5-6 tablespoons (75-90ml) cold water
• 1 cup (150g) fresh fish fillets (e.g., salmon or cod), skinless and boneless
• 1 cup (150g) mixed fresh veggies (e.g., bell peppers, spinach, and zucchini), finely chopped
• 2 tablespoons (30ml) olive oil
• 1 clove garlic, minced
• 1 teaspoon lemon juice
• Salt and pepper, to taste
• 1 large egg
• 1 tablespoon (15ml) water