Mix the ground beef with the grated onion, chopped chilies, and dried spices in a large mixing bowl. Mix the ground beef mixture with your hand until the fat starts to stick to your palm as you mix the meat.
2 lb Ground beef, 1 Yellow onion, 1 Jalapeno pepper, 2 tablespoon Ginger & garlic paste, 1 tablespoon Garam masala, 1 tablespoon Chaat masala, ½ tablespoon Kashmiri Chilli Powder, ½ tablespoon Amchur powder, 1 ½ teaspoon Tandoori masala, ½ tablespoon Kosher salt
Take a ½ cup portion of the meat and roll a smooth ball between your two palms.
Place the ball of meat onto a flat surface, and start to roll the meat into a log, kebab shape. Keep rolling the meat until it is the same thickness all around.
Once the kebab is your desired shape, length, and thickness, carefully push the skewer through the middle of the rolled kebab. Once the skewer is in, give the kebab one more gentle roll to seal the meat around the skewer.
Arrange the skewers on a large baking sheet, and spray lightly with cooking spray. Place the tray under the preheated broiler. Broil the kebabs for 5-7 minutes per side, turning carefully with tongs to char all sides of the kebabs.
Carefully remove the skewers from the kebabs using tongs or a tea towel, and serve.