Combine the tahini, lemon juice, honey, red wine vinegar, minced garlic, salt, and black pepper in a blender or food processor. Blend until smooth and creamy, then add water one teaspoon at a time while blending until you reach a pourable consistency—it should coat a spoon but still flow easily. Set aside at room temperature. I always use extra virgin olive oil in my dressings for a more robust flavor, so stir in the 1/3 cup olive oil last to maintain the creamy texture rather than emulsifying it completely.
While the sauce rests, prepare all your vegetables: mince the 4 garlic cloves, dice the zucchini into bite-sized pieces, dice the orange bell pepper, halve the cherry tomatoes, dice the red onion into small pieces, and chop the kalamata olives in half. Having everything prepped and ready (mise en place) ensures the cooking process moves smoothly without any pauses or rushing.
Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add the diced red onion and sauté for 3 minutes until it begins to soften and turn translucent, then add the minced garlic and cook for just 15 seconds until fragrant. Increase the heat to high, add the ground beef, and cook for 5-7 minutes, breaking it up with a spoon as it browns. I prefer 85/15 lean ground beef because it has enough fat to stay moist while browning nicely without excess grease.
Once the beef is browned, add the diced bell pepper and zucchini along with the oregano, cumin, paprika, salt, and black pepper. Stir well to distribute the spices throughout, then cook for 5 minutes, stirring occasionally, until the vegetables soften slightly and the spices bloom. The heat will help develop the warm, Mediterranean flavors of the dish.
Add the halved cherry tomatoes, chopped kalamata olives, and feta cheese to the skillet, stirring gently to combine. Cook for 1-2 minutes just until the tomatoes warm through and the feta begins to soften slightly. Taste and adjust seasoning if needed. Finish with fresh chopped parsley for brightness and freshness.
Divide the warm beef and vegetable mixture into bowls, then drizzle generously with the lemon tahini sauce from Step 1. Serve immediately while the beef mixture is still warm—the contrast between the warm spiced beef and cool, creamy sauce creates the perfect balance of flavors and textures.