Rinse the quinoa in a fine-mesh sieve under cold water for about 30 seconds, rubbing the grains with your fingers. This removes the bitter saponin coating and prevents a soapy flavor in the finished tabouli.

Cook the quinoa: combine the rinsed quinoa with 1 1/4 cups (300 ml) water and a pinch of salt in a small saucepan. Bring to a boil, then reduce to a low simmer, cover and cook for 12–15 minutes until the water is absorbed. Remove from heat and let rest, covered, for 5 minutes, then fluff with a fork. Resting steams the grains gently so they stay light and separate rather than gummy.

While the quinoa cooks, prepare the vegetables: finely dice the tomatoes and cucumber and place in a medium bowl. Reserve the chopped parsley for both kofta and tabouli. Trim and separate the romaine leaves, rinse and spin or pat dry; chilling the leaves briefly keeps them crisp for filling.

Make the kofta mixture: in a large bowl combine the ground beef, minced onion, minced garlic, ground cumin, ground coriander, paprika, half the chopped parsley (≈2 tbsp), 1 tablespoon of the olive oil (from the divided amount), 3/4 teaspoon kosher salt and 1/2 teaspoon freshly ground black pepper. Mix gently—overworking ground meat makes it dense; combine until just evenly distributed so the kofta stay tender.

Shape the kofta: with wet hands (this prevents sticking), divide the meat into 12 equal portions (about 50 g each) and form small oblong patties or logs roughly 8 cm long and 2.5 cm wide. Uniform size ensures even cooking and attractive presentation when served in lettuce cups.

Sear the kofta: heat a large heavy skillet (cast iron preferred) over medium-high heat until hot. Add a light swipe of oil if needed, then add the kofta in a single layer without crowding—work in batches if necessary. Sear 2–3 minutes per side until a deep brown crust forms, then reduce heat to medium and cook another 2–3 minutes, turning, until internal temperature reaches 70–72°C (160–165°F) for well-done ground beef. Searing develops Maillard browning which gives the meat deep, savory flavors.

While the kofta finish cooking, make the quinoa–tomato tabouli dressing: whisk together the remaining olive oil (≈1 tbsp + 2 tsp), lemon juice (≈1 tbsp + 1 tsp), 1/2 teaspoon salt and 1/4 teaspoon black pepper. Taste and adjust acidity or salt—tabouli should be bright and lemony to balance the rich beef.

Combine the tabouli: once the quinoa is fluffed and cooled slightly (warm is fine), add it to the bowl with tomatoes, cucumber, the remaining chopped parsley, and the dressing. Toss gently to combine and taste for seasoning. Allowing the salad to sit 5–10 minutes lets the flavors meld and the quinoa absorb the dressing, creating a cohesive, herb-forward salad.

Assemble the lettuce cups: arrange romaine leaves on a platter, place a spoonful of quinoa–tabouli into each leaf, then top with a seared kofta. Garnish with an extra pinch of chopped parsley and an optional drizzle of extra lemon juice or olive oil. Serve immediately so the lettuce remains crisp against the warm kofta.

Serve and enjoy: encourage guests to pick up the lettuce cup and eat by hand for the ideal contrast of textures—crisp lettuce, tender spiced meat and the tangy, slightly chewy quinoa salad.