Chicken Shawarma Wraps (Grilled or Instant Pot!)

Name: Chicken Shawarma Wraps (Grilled or Instant Pot!)
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Middle Eastern
Ingredients: 2 chicken breasts ((boneless/skinless)); 2 tbsp avocado oil; 1 tsp cinnamon; 1 tsp paprika; 1 tsp garlic powder; 1 tsp turmeric; ⅓ tsp salt; ½ tsp onion powder; ¼ tsp black pepper; ¼ tsp nutmeg; ½ cup plain Greek yogurt; ¼ cup cucumber (minced/grated); 2 tbsp lemon juice; 1 tbsp fresh dill (minced); 2 tsp dijon mustard; ½ tsp garlic powder; ¼ tsp salt; 4 whole wheat pitas; 1 cup spinach leaves; ½ cucumber (sliced); 1 large tomato (sliced)