Cook your base. Prepare quinoa, brown rice, or couscous according to package instructions. Fluff with a fork and set aside.
This can be done ahead and chilled.
Make the sauce. In a bowl, whisk Greek yogurt, tahini, olive oil, garlic, lemon zest and juice, a pinch of salt, and pepper. Add water a little at a time until it’s drizzleable. Taste and adjust lemon or salt as needed.
Prep the fresh elements. Halve tomatoes, dice cucumber, slice red onion, chop herbs, and crumble feta.
Keep everything ready for assembly.
Sauté the aromatics. Heat olive oil in a large skillet over medium heat. Add onion with a pinch of salt and cook 4–5 minutes until softened. Stir in garlic and cook 30 seconds until fragrant.
Brown the beef. Add ground beef to the skillet.
Break it up with a spoon and cook until no longer pink, about 5–7 minutes. Drain excess fat if needed, leaving a little for flavor.
Season boldly. Stir in cumin, smoked paprika, oregano, cinnamon (if using), red pepper flakes, salt, and black pepper. Cook 1–2 minutes to bloom the spices.
Squeeze in lemon juice and stir. Taste and adjust seasoning.
Assemble the bowls. Add a scoop of grains to each bowl. Top with greens, a generous portion of spiced beef, tomatoes, cucumber, red onion, olives, and feta.
Finish with sauce and herbs. Drizzle the lemon yogurt-tahini sauce over the top.
Sprinkle with parsley or dill. Add an extra squeeze of lemon if you like brightness.
Serve. Enjoy warm beef with crisp veggies for the best texture contrast.