1. Preheat your oven to 425 degrees F. In a medium bowl, combine the remaining 4 tablespoons of olive oil, Dijon mustard, minced garlic, finely chopped shallot, chopped rosemary, smoked paprika, lemon zest, lemon juice, and a pinch each of kosher salt and black pepper. This mixture is going to be your marinade, so whisk it together until well combined.
2. Add the chicken to the bowl and toss well to ensure every piece is coated in that flavorful marinade. Let it sit for about 15 to 20 minutes; this brief marinating time is key for getting the chicken infused with those delicious flavors.
3. While the chicken marinates, prepare your potatoes. On a rimmed baking sheet, toss the potatoes with 2 tablespoons of olive oil and the sesame seeds, seasoning them with kosher salt and black pepper. Spread them out in an even layer and roast for 20 minutes, or until they’re tender and starting to get golden.
4. Once the potatoes are done, remove them from the oven and push them to one side of the pan. Take the marinated chicken and place it on the other side of the pan. Arrange the asparagus around the chicken and drizzle with 1 tablespoon of olive oil, seasoning with more salt and pepper. This not only helps the asparagus roast beautifully, but it also keeps your pan organized.
5. Return the pan to the oven and roast for another 20 to 25 minutes, or until the chicken is cooked through and has reached an internal temperature of 165 degrees F. You’ll know it’s done when the juices run clear.
6. While everything is roasting, whip up the creamy feta sauce. In a blender, combine the feta cheese, Greek yogurt, grated garlic, and lemon juice. Blend until it’s smooth and creamy. Stir in the herbs, smoked paprika, and a pinch of crushed red pepper flakes for an added kick. If you want a thinner consistency, feel free to add a splash more of lemon juice.
7. When the chicken, potatoes, and asparagus are perfectly roasted, it’s time to serve! Divide everything between plates, and don’t forget to spoon that luscious feta sauce over the chicken. Each bite will be a burst of flavor and texture. Eat and enjoy!