Preheat your oven to 425°F (220°C).
In a large mixing bowl, combine the olive oil, Dijon mustard, garlic powder, onion powder, dried thyme, salt, and black pepper. Mix well to create a marinade.
Add the halved baby potatoes to the bowl and toss until they are evenly coated with the marinade.
Spread the coated potatoes in a single layer on a baking sheet lined with parchment paper.
Roast in the preheated oven for 25-30 minutes, or until the potatoes are golden brown and crispy, flipping them halfway through for even cooking.
Once done, remove from the oven and let them cool for a few minutes. Garnish with chopped fresh parsley before serving.
