Marinate the Chicken
In a large bowl, combine Greek yogurt, olive oil, garlic, shallots, smoked paprika, oregano, chili flakes, salt, and pepper. Toss in the chicken to coat. Marinate for at least 10 minutes (up to 4 hours for best flavor).
Roast the Chicken
Preheat oven to 425°F (220°C). Spread chicken on a sheet pan in a single layer. Roast for 12–15 minutes or until golden and cooked through (internal temp: 165°F/74°C).
Make the Ginger Tahini
In a small bowl, whisk tahini, grated ginger, garlic, tamari, lemon juice, and honey. Add warm water a tablespoon at a time to reach a pourable consistency. Adjust to taste.
Prepare Fresh Ingredients
Chop cucumbers and dice avocado. Toss both with lemon juice. Crumble feta, chop dill, and prep lettuce, peperoncini, onions, and tomatoes.
Assemble the Bowls
In each bowl, layer shredded lettuce, roasted chicken, cucumber-avocado mix, crumbled feta, and fresh dill. Add desired toppings.
Finish with Sauces
Spoon tzatziki over each bowl and drizzle with ginger tahini sauce.
Serve
Serve immediately with warm pita bread and optional sides like roasted potatoes or hummus.