Begin by finely chopping the yellow onion and fresh parsley. Combine these chopped vegetables in a large mixing bowl.

In a separate large bowl, combine the lean ground beef with the onion-parsley mix, salt, black pepper, seven spice blend, and optional cayenne pepper. Mix everything together thoroughly.

Once your meat mixture is well combined, take a handful and mold it onto skewers, forming 1 to 1.5-inch thick logs.

Prepare your grill by preheating it to medium-high heat, around 375°F to 450°F. Lightly oil the grill grates.

Place the shaped kebabs on the preheated grill and cook for approximately 4 minutes on each side until a nice golden-brown crust forms.

After grilling, carefully remove the kebabs from the skewers. Serve them hot with fresh pita bread and hummus.