Heat a large skillet over medium heat and add olive oil. Allow it to heat until shimmering.
Add chopped onion, garlic, and celery. Sauté for approximately 5 minutes until they become soft and translucent, creating a flavorful base.
Introduce ground lamb to the skillet. Cook for 4-5 minutes until it’s no longer pink, stirring occasionally for even cooking. The lamb adds richness to the dish.
Add ground cumin, fresh mint leaves, chopped parsley, and a pinch of black pepper. Cook for an additional minute to infuse the mixture with flavors.
Incorporate long-grain rice and orzo into the skillet. Stir vigorously to create a balanced mixture with lamb and spices.
Pour in 2 cups of water and bring the mixture to a boil over higher heat. Once boiling, reduce heat, cover the skillet, and simmer for about 20 minutes until the rice is cooked through.
Season the dish to taste with salt and add lemon juice for a zesty flavor. Stir well to distribute the seasoning evenly. Let it simmer for a few more minutes to meld the flavors.
Serve the flavorful lamb and rice dish while it’s still warm. Optionally, garnish with freshly chopped parsley for a burst of color and added freshness.