Easy Vegan Kebab

Name: Easy Vegan Kebab
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: Middle Eastern
Ingredients: ¼ small onion; 1 lb beyond meat, impossible or comparative ground beef; ¼ tsp black pepper; ½ tsp cumin; ½ tsp ground coriander; ½ tsp oregano; ½ tspgarlic powder; ½ tsp paprika; 2 tbsp vegan butter or oil to cook; 4 Lebanese style pitas or naan; 2 cups lettuce, shredded; 2 small or one large tomato, sliced; ¼ cucumber, sliced; 1 small red onion, sliced; tahini; vegan yogurt sauce (optional); hot sauce; sumac (optional)