In a bowl, combine the chicken, seasonings, lemon juice, garlic, and mayonnaise. Mix well and marinate for as long as you wish (up to overnight).
Preheat your oven to 375°F (190°C). Add the potatoes to a large casserole dish. Toss with the melted butter, parmesan, olive oil, garlic, and seasonings. Spread evenly.
Top with the chicken thighs. Add the red onion chunks around the dish & drizzle them with olive oil.
Slice the tops off the garlic heads, drizzle with olive oil and salt, wrap in foil, & place in dish.
Bake for 40 mins. Broil for the last 2–3 mins if desired.
Optional but recommended: Mix together mayo, parmesan, and paprika. At the 20-min mark, baste the chicken & return to the oven.
In a bowl, combine the yogurt, mayo, lemon juice, salt, pepper, and chives. Squeeze in as much of the roasted garlic as you wish OR chop them up first. Mix.
Finish with fresh parm, chives, & lemon slices. Enjoy!
