Preheat oven to 400˚ and bring a pot of water to a boil. Add sliced potatoes to the boiling water and blanch for 3-4 minutes, just until potatoes are slightly tender. Drain and place in a roasting pan along with onion.
Add curry powder and coconut oil, tossing until well combined. Roast potatoes until golden, 15-20 minutes.
Combine roasted potatoes, spinach, and almonds in a bowl. In a small jar with lid, shake dressing together. Pour over salad and toss together.