Muffin Pan Tuna Melts - SavvyMom

Ingredients

• 6 tablespoons (90 mL) unsalted butter, melted, divided
• 12 slices whole wheat bread, crusts removed
• 2 cans (6 ounces/170 g each) chunk white tuna packed in water, drained
• 2 tablespoons (30 mL) minced celery
• 2 tablespoons (30 mL) minced red onion
• 1/3 cup (85 mL) mayonnaise
• 1 tablespoon (15 mL) whole grain mustard
• ½ teaspoon (2 mL) freshly ground black pepper
• Zest and juice of ½ lemon
• Kosher salt
• ¾ cup (175 mL) grated Monterey Jack cheese
• Fresh dill sprigs, for garnish