Step 1: Season the Chicken with Garlic and Spices - Place the chicken tenders in a large bowl. Add 1 tablespoon of olive oil along with the Dijon mustard, salt, pepper, garlic powder, onion powder, paprika, and dried parsley. Use your hands or a spoon to mix everything until the chicken is fully coated. Set it aside while you prepare the potatoes.
Step 2: Prepare and Coat the Potatoes in Garlic Butter - Cut the baby yellow potatoes in half so they cook evenly and get those nice golden edges. Place them in a bowl and pour over the melted butter. Add the salt, pepper, and minced garlic, then toss everything together until the potatoes are well coated.
Step 3: Sear the Chicken Until Golden and Fully Cooked - Heat a large skillet over medium high heat and add the remaining tablespoon of olive oil. Once the oil is hot, add the chicken tenders in a single layer. Let them cook undisturbed for a few minutes to develop a good sear, then turn and cook until they are browned on all sides and fully cooked through. Remove the chicken from the pan and set it aside.
Step 4: Cook the Potatoes Until Crisp and Add Fresh Herbs - In the same skillet, add the prepared potatoes. Spread them out so they have room to brown. Cook them on medium high heat, turning occasionally, until they are golden and tender. When they are nearly done, add the fresh thyme, rosemary, and parsley. Stir gently and cook just until the herbs become fragrant.
Step 5: Bring Everything Together and Serve Warm - Return the chicken to the skillet or plate everything together. Serve warm and enjoy while everything is fresh and flavorful.