Creating Healthy Tuna Melt Wraps can be straightforward if you follow these simple steps:

1. Prepare the Tuna Mixture: In a medium bowl, combine the drained tuna, Greek yogurt or mayo, Dijon mustard, red onion, celery, garlic powder, and black pepper. Mix until well combined.
2. Add Cheese: Stir in the shredded cheddar cheese until the mixture is evenly distributed.
3. Assemble the Wraps: Lay one whole wheat wrap on a flat surface. Layer it with a generous portion of the tuna mixture.
4. Add Vegetables: Top with sliced tomatoes and a handful of fresh spinach or arugula.
5. Wrap It: Carefully fold the sides of the wrap inward, then roll it up from the bottom to the top, keeping the filling secure.
6. Toast the Wrap: Heat a non-stick skillet over medium heat. Place the wrapped tuna melt seam side down and grill for 3-4 minutes or until golden brown.
7. Flip and Cook: Flip the wrap over and grill the other side for an additional 3-4 minutes until crispy and the cheese melts.
8. Slice and Serve: Remove from the skillet, let it cool slightly, then cut in half diagonally and serve warm.