In a large mixing bowl, combine the melted butter, minced garlic, dried thyme, paprika, salt, and black pepper. Mix well.
Add the cubed steak bites to the bowl and toss to coat them in the garlic butter mixture. Set aside.
In another bowl, toss the halved baby potatoes with olive oil, salt, and pepper until evenly coated.
Preheat the air fryer to 400°F (200°C).
Once preheated, place the seasoned potatoes in the air fryer basket in a single layer. Cook for 10 minutes.
After 10 minutes, shake the basket and add the garlic butter steak bites on top of the potatoes.
Continue cooking for an additional 5 minutes, or until the steak is cooked to your desired doneness and the potatoes are tender and golden brown.
Carefully remove from the air fryer and garnish with chopped parsley before serving.