Add the yellow onion, garlic, mint, parsley, cumin powder, coriander powder, paprika, harissa, dried oregano, cayenne, salt, and ground lamb to a large mixing bowl. Mix well so everything is evenly distributed. Take a teaspoon of the mixture and microwave on high for 20 seconds. Taste for seasoning and adjust to your preferences.
¼ yellow onion, 4 garlic cloves, 1 tablespoon mint, 4 tablespoons parsley, 1 ½ teaspoon cumin powder, 1 teaspoon coriander powder, ½ teaspoon paprika, ½ teaspoon harissa, 1 teaspoon dried oregano, ¼ teaspoon cayenne, 1 ½ teaspoon kosher salt, 1 pound ground lamb