In a bowl, combine potatoes with 1 tsp olive oil and seasoning blend. Transfer to prepared baking dish.
In another bowl, combine broccoli, pearl onions, 2 tsp olive oil, ¼ tsp salt and a pinch of pepper. Toss to coat. transfer to same prepared baking sheet as potatoes.
Roast both in 400 degree oven until tender, 15-20 minutes