Line baking sheet with aluminium foil and lightly spray with cooking spray.
Toss chicken with olive oil, dill, lemon zest, garlic powder, salt and pepper.
Place on baking sheet and bake for 35-40 minutes until cooked through.
Allow chicken to cool. Shred using two forks and place in a medium bowl.
Cream Cheese Spread
In a small bowl stir together cream cheese, dill, garlic powder, onion powder and salt until creamy.
Grilled Cheese
Preheat panini maker or large skillet over medium heat.
Toss Fontina cheese with shredded chicken.
Lightly drizzle outer slices of bread with olive oil or brush with butter.
Generously spread inside slices with cream cheese spread. Top with chicken mixture and other slice of bread.
Add sandwich to panini and cook until cheese is melted and bread is golden brown. If cooking on skillet, flip after a few minutes until golden brown and cheese is melted.
Notes
Save a step! You could substitute cooking the chicken and use a store bought rotisserie chicken. Shred chicken as instructed and follow the remaining steps.