In a mixing bowl break tuna up with a fork. Toss with grapes, celery, green onion, raisins and cashews.
In a small bowl add paleo mayo, milk, lemon juice, and curry powder. Mix well. Add dill and garlic powder. Stir. Season with salt and pepper to taste.
Add mayo mixture to tuna mixture and toss to combine flavors.
Serve in lettuce cups, bell pepper boats, or whole grain pitas.
