01 - Preheat oven to 400°F (200°C). Wash and scrub sweet potatoes thoroughly, then pierce each several times with a fork.
02 - Arrange sweet potatoes on a parchment-lined baking sheet. Bake for 40 to 45 minutes, until fully tender when pierced.
03 - Let sweet potatoes cool slightly, then slice each in half lengthwise. Gently scoop out a portion of the center, leaving a 1/4-inch border around the edges to form shallow boats. Set the scooped flesh aside.
04 - Drizzle the interior of each sweet potato boat with olive oil, then sprinkle with smoked paprika, salt, and pepper.
05 - Heat 1 tablespoon olive oil in a skillet over medium heat. Sauté red bell pepper and chopped spinach until softened, about 2 to 3 minutes. Mix in half of the reserved sweet potato flesh to enhance the filling.
06 - Divide the sautéed vegetable mixture among the sweet potato boats, creating a small well in the center of each.
07 - Carefully crack one egg into each well. Return the filled sweet potatoes to the oven and bake for 12 to 15 minutes, or until eggs are cooked to desired doneness.
08 - Remove from oven. Garnish each sweet potato boat with avocado slices, crumbled feta cheese, and chopped chives or green onions. Serve warm.