Preheat the oven to 425 degrees f. and line a large baking sheet (or two) with parchment paper or silicone baking mats.
Cut the sweet potatoes into 1/2 inch fries, evenly as shown and place them into a large bowl.
Sprinkle fries with pepper, oregano, garlic, and drizzle with oil.
Toss well to get all of your fries nicely coated.
Arrange in a single layer, with some space in between (so they can crisp up), on the baking sheets and bake for 20 to 25 minutes, flipping once during roasting time.
Meanwhile, prepare your healthy Ranch dip. In a small bowl, add all ranch ingredients and whisk to combine.
Sprinkle with sea salt just before serving.